Heterocyclic Monomer Patents (Class 424/78.19)
  • Patent number: 10479854
    Abstract: A peptide-polymer conjugate is provided for use in treating malaria infections, and in particular terminal or drug resistant malaria infections. The conjugate is formed from a polymer to which a peptide having activity against a malaria parasite is co-valently attached. The peptide is a cyclic decapeptide from the closely-related group of tyrocidines, tryptocidines, phenycidines and gramicidin S, and the polymer is a hydrophilic and biocompatible polymer with a terminal thiol, such as poly(N-vinylpyrrolidone) (PVP). The polymer chains can be decorated with a hydrophilic targeting ligand that specifically targets an epitope on red blood cells, and in particular red blood cells infected with a plasmodial parasite. A method for synthesising the peptide-polymer conjugate is also provided.
    Type: Grant
    Filed: August 12, 2015
    Date of Patent: November 19, 2019
    Assignee: Stellenbosch University
    Inventors: Lubertus Klumperman, Paul William Reader, Marina Rautenbach
  • Patent number: 10118996
    Abstract: A polyrotaxane containing an affinity binding group has been designed and prepared. The polyrotaxane of the invention can be used for characterization and determination of the three-dimensional structures of biological molecules, such as proteins.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: November 6, 2018
    Assignee: Purdue Research Foundation
    Inventors: David H. Thompson, Seok-Hee Hyun, Kyle J. Wright
  • Patent number: 8945927
    Abstract: The present invention relates to a new class of cationic polymers that self-assemble with a pH-sensitive dissolution switch, and their uses to deliver molecules of interest to a cell. The present invention also relates to compositions comprising said cationic polymers non-covalently associated with a molecule of interest, in particular with a siRNA.
    Type: Grant
    Filed: March 29, 2011
    Date of Patent: February 3, 2015
    Assignees: Universite de Strasbourg, Centre National de la Recherche Scientifique
    Inventors: Guy Zuber, Benoit Frisch, Gaelle Creusat, Jean-Sebastien Thomann
  • Publication number: 20150017221
    Abstract: Provided is a cell adhesion inhibitor which exhibits low cytotoxicity and an excellent cell adhesion prevention effect; a tool and an apparatus each having a surface modified through application of the cell adhesion inhibitor thereto; a method for producing each of the surface-modified tool and apparatus; a biomedical structure and a production method therefor; and a microchannel device and a production method therefor. The invention provides a cell adhesion inhibitor comprising, as an active ingredient, a polymer comprising a repeating unit having a sulfinyl group in a side chain thereof.
    Type: Application
    Filed: December 26, 2012
    Publication date: January 15, 2015
    Inventors: Naoki Hayashi, Satoshi Hyugaji, Toshihiro Ogawa, Hidetoshi Miyamoto, Shin-ichirou Iwanaga
  • Patent number: 8916142
    Abstract: The invention relates to a supramolecular polymer obtained from the reaction of (i) an amine bearing a nitrogen-containing heterocyclic group: imidazolidone, trimethyleneurea or triazine, which is capable of associating by means of hydrogen bonds and (ii) at least one fatty acid monomer comprising at least one reactive function, a dimer of identical or different fatty acids and/or a trimer of identical or different fatty acids, or a derivative of said fatty acid(s) which is selected from a fatty acid ester, and a fatty acid chloride.
    Type: Grant
    Filed: September 7, 2007
    Date of Patent: December 23, 2014
    Assignees: Arkema France, Centre National de la Recherche Scientifique (CNRS)
    Inventors: Sandra Grimaldi, Jean-Philippe Gillet, Manuel Hidalgo, Francois-Genes Tournilhac, Philippe Cordier, Ludwik Leibler
  • Publication number: 20140341839
    Abstract: The invention relates to a biocidal composition comprising a carboxyl functional polymer and biocidal quaternary ammonium ions. The polymer is a copolymer comprising maleic acid monomer units and/or anions thereof and vinyl ether comonomer units. The composition may be in the form of a film on a surface or in the form of a solution.
    Type: Application
    Filed: September 13, 2012
    Publication date: November 20, 2014
    Applicant: NOVAPHARM RESEARCH (AUSTRALIA) PTY LTD
    Inventors: Steven Kritzler, Michael Kritzler
  • Patent number: 8815227
    Abstract: The present invention provides, among other things, polymeric reagents suitable for reaction with biologically active agents to form conjugates, the polymeric reagents comprising one or more polymer chains and a plurality of hydroxyapatite-targeting moieties, and optionally the reagents include one or more degradable linkages that serve to divide the polymer chains into polymer segments having a molecular weight suitable for renal clearance.
    Type: Grant
    Filed: April 17, 2013
    Date of Patent: August 26, 2014
    Assignee: Nektar Therapeutics
    Inventors: Samuel P. McManus, Antoni Kozlowski
  • Patent number: 8715635
    Abstract: A rotaxane consisting of a cucurbituril and an uncharged guest molecule, having low or null affinity therebetween is provided as well as processes for providing the same. Various uses as energy converters (“frictionless” molecular motors), biochips and biosensors using the same are also provided.
    Type: Grant
    Filed: February 6, 2008
    Date of Patent: May 6, 2014
    Assignee: Technion Research & Development Foundation Limited
    Inventor: Ehud Keinan
  • Patent number: 8715708
    Abstract: A novel class of Cylic Acetal biomaterials (CABs) based on a cyclic acetal unit is disclosed and claimed by Applicants. Two novel biomaterials suitable for use in a variety of biological applications including in the orthopedic field for joint and cartilage replacement and/or repair, and bone cement. The biomaterials are comprised of either a network of monomers of 5-ethyl-5-(hydroxymethyl)-?,?-dimethyl-1,3-dioxane-2-ethanol diacrylate (EHD) and a hydrogel comprised of EHD and poly(ethylene glycol) diacrylate (PEG-EHD).
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: May 6, 2014
    Assignee: University of Maryland
    Inventors: John Patrick Fisher, Sachiko Kaihara, Jennifer Lynn Moreau, Parth Modi
  • Publication number: 20130344023
    Abstract: A polymer includes at least one monomeric unit represented by Formula I, II, or III: where X is CH2 or O; R1 is H, COOR2, COCH3, CONHR2, OR2 or SR2; L is a bond or a linker group; AA is a group derived from an active agent; each R2 is independently H, a cation, an alkyl, an alkenyl, an alkynyl, COCH3, CH2CH2OH, CH2CH2OR3, an amino acid, a small peptide, a large peptide, enzyme, protein, growth factor, cytokine, antibody, single chain antibody, antibody fragment, COCCH3?CH2, COCH?CH2, CH2CO2H, CH2CH2CO2H, CH2CH2SH, CH2CH2SR3 or (CH2CH2O)n?R4; n? is an integer from 1 to 2000; each R3 is independently trityl, 4-methyltrityl or 2 pyridyl; each R4 is independently H, an alkyl, an alkenyl, an alkynyl, COCCH3?CH2, COCH?CH2, CH2CHO, CH2CH2CHO, CO2H, CO2R5, CH2CO2H, CH2CH2CO2H, CH2NH2, CH2NHR5, CH2N(R5)2, CH2CH2NH2, CH2CH2NHR, CH2CH2N(R5)2, SH, CH2CO2R5, or CH2CH2CO2R5; and each R5 is independently maleimide, a cation, an amino acid, a small peptide, a large peptide, protein, enzyme, growth factor, cytokine, antibody,
    Type: Application
    Filed: January 11, 2012
    Publication date: December 26, 2013
    Applicant: Flex-Biomedical
    Inventors: Michel Wathier, Hideki Suzuki
  • Publication number: 20130344159
    Abstract: The present invention relates to a polymer obtained from the polymerization of: (i) at least one monomer of formula (I) (CH2?CR1)CO—K (1) wherein: K represents O—Z or NH—Z, Z representing (CR2R3)m-CH3, (CH2—CH2—O)m-H, (CH2—CH2—O)m-CH3, (CH2)m-NR4R5 with m representing an integer from 1 to 30; R1, R2, R3, R4 and R5 independently represent H or a C1-C6 alkyl; (ii) at least between 0.1 and 50% mol, advantageously between 1 and 30% mol, more advantageously between 1 and 20 mol % of a cyclic monomer having a exomethylene group of formula (II) wherein: R6, R7, R8 and R9 represent independently H or a C5-C7 aryl group or R6 and R9 are absent and R7 and R8 form together with the carbon atom on which they are bonded a C5-C7 aryl group; i and j represent independently an integer chosen between 0 and 2; X represents either O or X is not present and in this latter case, CR6R7 and CR8R9 are linked via a single bond C—C and (iii) at least one bio-resorbable block copolymer cross-linker.
    Type: Application
    Filed: March 9, 2012
    Publication date: December 26, 2013
    Applicants: OCCLUGEL, UNIVERSITE PARIS DIDEROT - PARIS 7, ASSISTANCE PUBLIQUE-HOPITAUX DE PARIS, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Laurence Moine, Alexandre Laurent, Michel Wassef, Laurent Bedouet, Stephanie Louguet, Valentin Verret, Emeline Servais
  • Patent number: 8404222
    Abstract: PEG and related polymer derivatives having weak, hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs, including proteins, enzymes, small molecules, and others. These derivatives provide a sufficient circulation period for a drug-PEG conjugate, followed by hydrolytic breakdown of the conjugate and release of the bound molecule. In some cases, drugs that demonstrate reduced activity when permanently coupled to PEG maintain a therapeutically suitable activity when coupled to a degradable PEG in accordance with the invention. The PEG derivatives of the invention can be used to impart improved water solubility, increased size, a slower rate of kidney clearance, and reduced immunogenicity to a conjugate formed by attachment thereto. Controlled hydrolytic release of the bound molecule into an aqueous environment can then enhance the drug's delivery profile by providing a delivery system which employs such polymers and utilizes the teachings provided herein.
    Type: Grant
    Filed: November 30, 2011
    Date of Patent: March 26, 2013
    Assignee: Nektar Therapeutics
    Inventor: J. Milton Harris
  • Publication number: 20130039880
    Abstract: The present invention relates to novel compositions of therapeutic cyclodextrin containing polymeric compounds designed as a carrier for small molecule therapeutics delivery and pharmaceutical compositions thereof. These cyclodextrin-containing polymers improve drug stability and solubility, and reduce toxicity of the small molecule therapeutic when used in vivo. Furthermore, by selecting from a variety of linker groups and targeting ligands the polymers present methods for controlled delivery of the therapeutic agents. The invention also relates to methods of treating subjects with the therapeutic compositions described herein. The invention further relates to methods for conducting pharmaceutical business comprising manufacturing, licensing, or distributing kits containing or relating to the polymeric compounds described herein.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Applicant: CERULEAN PHARMA INC.
    Inventors: Jianjun Cheng, Mark E. Davis, Kay T. Khin
  • Patent number: 8323669
    Abstract: [Problems] To provide a novel taxane derivative which can release the medicinal substance in a bioenzyme-independent manner, is expected to have an effective therapeutic efficacy, and has a water-solubility. [Means for Solving Problems] Disclosed is a polymer conjugate of a taxane, which comprises a polymer having a polyethylene glycol moiety and two or more succinic acid monoamide moieties and a taxane, wherein a carboxylate group in the polymer and an alcoholic hydroxyl group in the taxane are bound to each other via an ester bonding.
    Type: Grant
    Filed: March 22, 2007
    Date of Patent: December 4, 2012
    Assignee: Nippon Kayaku Kabushiki Kaisha
    Inventors: Masayuki Kitagawa, Keizou Ishikawa, Takeshi Onda
  • Patent number: 8273828
    Abstract: Biocompatible polymers having polymer backbones with at least one secondary amine suitable for diazeniumdiolation are disclosed. Specifically, methods for providing secondary amines-containing polymers using epoxide-opening reactions are provided. More specifically, nitric oxide-releasing medical devices made using these polymers are disclosed.
    Type: Grant
    Filed: July 24, 2007
    Date of Patent: September 25, 2012
    Assignee: Medtronic Vascular, Inc.
    Inventors: Mingfei Chen, Peiwen Cheng, Kishore Udipi
  • Patent number: 8088365
    Abstract: PEG and related polymer derivatives having weak, hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs, including proteins, enzymes, small molecules, and others. These derivatives provide a sufficient circulation period for a drug-PEG conjugate, followed by hydrolytic breakdown of the conjugate and release of the bound molecule. In some cases, drugs that demonstrate reduced activity when permanently coupled to PEG maintain a therapeutically suitable activity when coupled to a degradable PEG in accordance with the invention. The PEG derivatives of the invention can be used to impart improved water solubility, increased size, a slower rate of kidney clearance, and reduced immunogenicity to a conjugate formed by attachment thereto. Controlled hydrolytic release of the bound molecule into an aqueous environment can then enhance the drug's delivery profile by providing a delivery system which employs such polymers and utilizes the teachings provided herein.
    Type: Grant
    Filed: March 30, 2009
    Date of Patent: January 3, 2012
    Assignee: Nektar Therapeutics
    Inventor: J. Milton Harris
  • Publication number: 20110300096
    Abstract: An alternating copolymer comprising a backbone of residues of a maleic anhydride derivative and those of a compound containing vinylic unsaturation, which also comprises residues of an active compound containing a nucleophilic group, bound to the backbone by a residue of the nucleophilic group, including such a copolymer comprising residues of an active compound containing an alcohol, thiol or amine group. The chemical and biological properties of actives, such as protease inhibitors, neurotransmitter drugs, and other small molecule active drugs, are enhanced, and new applications enabled. Also, artefacts, including a solid medical implant device, dressing or scaffold or a fluid adhesive or medicinal composition comprising such a polymer, and a method of use of such a polymer, including a method for the treatment or prophylaxis of wounds.
    Type: Application
    Filed: May 10, 2011
    Publication date: December 8, 2011
    Inventor: Bryan GREENER
  • Publication number: 20110117168
    Abstract: Compositions and methods for tissue repair are provided including cell binding peptides and growth factor binding peptides. The cell binding peptides bind to one or more of stem cells, fibroblasts, or endothelial cells. The growth factor binding peptides include platelet derived growth factor (PDGF) binding peptides and growth differentiation factor (GDF) binding peptides. The tissue for repair includes tendon, muscle, connective tissue, ligament, cardiac tissue, vascular tissue, or dermis. Implantable devices for tissue repair are provided to which the cell and growth factor binding peptides are attached, such as acellular extracellular matrix having attached binding peptide.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 19, 2011
    Applicant: AFFINERGY, INC.
    Inventors: Ganesan Sathya, Michelle Steffen Jansen, Paul Theodore Hamilton, Jonathan Allen Hodges, Shrikumar Ambujakshan Nair, Hanne Gron
  • Patent number: 7767197
    Abstract: The present invention provides an immunogen composition and methods for using the same for the development of immunity, and particularly at mucosal sites in a mammal, thereby providing immunity at the site of entry for many major pathogenic organisms and also systemic immunity. The immunogen composition includes an antigen, a biocompatible polymer, and a liquid vehicle, with the biocompatible polymer and liquid vehicle being present in such proportions and interacting in such a way that the immunogen composition exhibits reverse-thermal viscosity behaviour. A delivery vehicle composition including a drug other than an antigen is also provided. Methods are provided for delivering the compositions of the invention to a host.
    Type: Grant
    Filed: June 22, 2001
    Date of Patent: August 3, 2010
    Assignee: Endo Pharmaceuticals Colorado LLC
    Inventors: Joan P. Blonder, Claire M. Coeshott, Timothy C. Rodell, Wren H. Schauer, Gary J. Rosenthal
  • Publication number: 20100111894
    Abstract: Described herein are MetAP-2 inhibitors and compositions and formulations thereof, and more particularly compositions and formulations of MetAP-2 inhibitors wherein the MetAP-2 inhibitor is associated with a block copolymer comprising a hydrophilic polymer moiety and a hydrophobic polymer moiety. The present invention also relates to compositions and formulations comprising MetAP-2 inhibitors for oral administration or administration via routes such as topical or ocular administration. The present invention also provides methods to treat conditions associated with or related to the over-expression or over-activity of MetAP-2 by administering the compositions and formulations comprising MetAP-2 inhibitors as disclosed herein.
    Type: Application
    Filed: December 28, 2009
    Publication date: May 6, 2010
    Applicant: CHILDREN'S MEDICAL CENTER CORPORATION
    Inventors: Ofra Benny-Ratsaby, Robert D'Amato
  • Patent number: 7655747
    Abstract: PEG and related polymer derivatives having weak, hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs, including proteins, enzymes, small molecules, and others. These derivatives provide a sufficient circulation period for a drug-PEG conjugate, followed by hydrolytic breakdown of the conjugate and release of the bound molecule. In some cases, drugs that demonstrate reduced activity when permanently coupled to PEG maintain a therapeutically suitable activity when coupled to a degradable PEG in accordance with the invention. The PEG derivatives of the invention can be used to impart improved water solubility, increased size, a slower rate of kidney clearance, and reduced immunogenicity to a conjugate formed by attachment thereto. Controlled hydrolytic release of the bound molecule into an aqueous environment can then enhance the drug's delivery profile by providing a delivery system which employs such polymers and utilizes the teachings provided herein.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: February 2, 2010
    Assignee: Nektar Therapeutics
    Inventor: J. Milton Harris
  • Patent number: 7572461
    Abstract: The invention provides methods for suppressing the degradation of wood, wood products, and wooden structures due to infestation by wood-boring organisms, by use of a polyurea composition. The invention also provides for wood, wood products, and wood structures that are resistant to degradation due to borer infestation by use of a polyurea composition.
    Type: Grant
    Filed: March 5, 2004
    Date of Patent: August 11, 2009
    Inventors: Kenneth I. Sawyer, Robert J. Kupper
  • Publication number: 20080305070
    Abstract: Activated polymeric bicine derivatives such as, as well as conjugates made therewith are disclosed. Methods of making and using the bicine derivatives are also disclosed.
    Type: Application
    Filed: July 25, 2008
    Publication date: December 11, 2008
    Applicant: ENZON PHARMACEUTICALS, INC.
    Inventors: Hong ZHAO, Richard B. GREENWALD, Susan L. ADLER
  • Patent number: 7420029
    Abstract: The present invention is to provide a tissue-specific transporter inhibitor which is not absorbed through the digestive tract and can prevent deterioration in the QOL of a patient caused by diet therapy, and a therapeutic drug for tissue dysfunction diseases and a therapeutic drug for suppressing the progress of chronic renal failure containing the inhibitor as an active ingredient. A tissue-specific transporter inhibitor which is not absorbed through the digestive tract is constructed by introducing a dipeptide which is a ligand of an oligopeptide transporter 1 into a supramolecular structure polyrotaxane wherein its structurally modified active residue is expected to be excellent in the interaction with a transmembrane transporter.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: September 2, 2008
    Assignee: Japan Science and Technology Agency
    Inventors: Akira Tsuji, Ikumi Tamai, Yoshimichi Sai, Noubuhiko Yui, Toru Oya, Ken-ichi Miyamoto
  • Patent number: 7396527
    Abstract: Polymers (i.e. polyesters, polyamides, polythioesters, polyanhydrides, or a mixture thereof) which degrade hydrolytically to provide a combination of a beta-lactam antibiotic (e.g., amoxicillin) and a beta-lactamase inhibitor (e.g., clavulanic acid) (or a pharmaceutically acceptable salt thereof) are provided. Methods of producing these polymers, intermediates useful for preparing these polymers, and methods of using these polymers to deliver a combination of a beta-lactam antibiotic and a beta-lactamase inhibitor (or a pharmaceutically acceptable salt thereof) to a host are also provided.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: July 8, 2008
    Assignee: Rutgers, The State University of New Jersey
    Inventor: Kathryn E. Uhrich
  • Patent number: 7323163
    Abstract: Film-forming compositions, as well as methods of making and using, wherein the compositions include an optional active agent, water, a surfactant, and a water-soluble or water-dispersible vinyl polymer comprising amine group-containing side-chains and a copolymerized hydrophobic monomer; wherein the amine equivalent weight of the polymer is at least about 300 grams polymer per equivalent of amine group.
    Type: Grant
    Filed: August 19, 2004
    Date of Patent: January 29, 2008
    Assignee: 3M Innovative Properties Company
    Inventors: Danli Wang, Matthew T. Scholz, Dong-Wei Zhu, Triet M. Lu
  • Patent number: 7153498
    Abstract: A composition, comprising, in a physiologically acceptable medium, an aqueous phase dispersed in an oily phase by means of an emulsifier of at least one oligomer or one polymer derived from a polyolefin, comprising a polyolefinic apolar component comprising at least 40 carbon atoms and at least one polar component.
    Type: Grant
    Filed: July 13, 2001
    Date of Patent: December 26, 2006
    Assignee: L'Oreal
    Inventors: Odile Aubrun-Sonneville, Jean-Thierry Simonnet
  • Patent number: 6939563
    Abstract: Use of a non-fermented osmotic laxative as an active agent for preparation of a medicinal product for treating and/or preventing colon and/or rectum cancers. A method of treating or preventing colon or rectum cancer comprising administering to a mammal a therapeutically effective amount of a non-fermented osmotic laxative.
    Type: Grant
    Filed: April 18, 2001
    Date of Patent: September 6, 2005
    Assignees: Inra-Institut National de la Recherche Agronomique, ENVT-Ecole Nationale Veterinaire de Toulouse
    Inventors: Denis Corpet, Sylviane Tache, Géraldine Parnaud
  • Patent number: 6864350
    Abstract: PEG and related polymer derivatives having weak, hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs, including proteins, enzymes, small molecules, and others. These derivatives provide a sufficient circulation period for a drug-PEG conjugate and then for hydrolytic breakdown of the conjugate and release of the bound molecule. In some cases, drugs that previously had reduced activity when permanently coupled to PEG can have therapeutically suitable activity when coupled to a degradable PEG in accordance with the invention. The PEG of the invention can be used to impart water solubility, size, slow rate of kidney clearance, and reduced immunogenicity to the conjugate. Controlled hydrolytic release of the bound molecule in the aqueous environment can then enhance the drug delivery system.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: March 8, 2005
    Assignee: Nektar Therapeutics AL, Corporation
    Inventor: J. Milton Harris
  • Patent number: 6838078
    Abstract: Film-forming compositions, as well as methods of making and using, wherein the compositions include an optional active agent, water, a surfactant, and a water-soluble or water-dispersible vinyl polymer comprising amine group-containing side-chains and a copolymerized hydrophobic monomer; wherein the amine equivalent weight of the polymer is at least about 300 grams polymer per equivalent of amine group.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: January 4, 2005
    Assignee: 3M Innovative Properties Company
    Inventors: Danli Wang, Matthew T. Scholz, Dong-Wei Zhu, Triet M. Lu
  • Patent number: 6830747
    Abstract: Biocompatible biodegradable polymer or copolymer is capped at one end and has free hydroxyl at the other end. The free hydroxyl can be reacted to link a plurality of functional groups some or each of which can be reacted to attach directly or via a spacer molecule a moiety containing an aminoxyl-containing radical or to a moiety comprising other drug molecule residue or a moiety comprising other biologically active agent residue.
    Type: Grant
    Filed: March 20, 2002
    Date of Patent: December 14, 2004
    Assignee: Cornell Research Foundation, Inc.
    Inventors: Meidong Lang, Chih-Chang Chu
  • Patent number: 6828412
    Abstract: A polymer comprising: a polymeric backbone comprising at least one unit having the structure (I), wherein R-R4 comprise groups selected from the group consisting of H, C1-C12 alkyl, C6-C18 aryl, C7-C18 aralkyl, C6-C18 cycloalkyl or any of the group consisting of C1-C12 alkyl, C6-C18 aryl, C7-C18 aralkyl, C6-C18 cycloalkyl substituted, within the carbon chain or appended thereto, with one or more heteroatoms; R and R2 or R and R4 or R and R1 or R2 and R3 may be joined so that with the carbon atom(s) to which they are attached they together form a saturated, partially unsaturated or unsaturated ring system respectively, may have a pendent group which may incorporate a linker unit, (for example a peptide linkage) or a unit having the structure (I); A comprises a proton donating moiety selected from the group consisting of formula (1).
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: December 7, 2004
    Assignee: School of Pharmacy, University of London
    Inventors: Stephen James Brocchini, Marie-Claude Dubois Clochard
  • Publication number: 20040213757
    Abstract: This invention relates to soluble derivatives of wortmannin that utilizes water-soluble polymers as carriers for a drug and includes compounds having the structures as described within the specification.
    Type: Application
    Filed: April 20, 2004
    Publication date: October 28, 2004
    Applicant: Wyeth Holdings Corporation
    Inventors: Tianmin Zhu, Ker Yu, Judy Lucas, Jianxin Gu, Arie Zask
  • Patent number: 6803051
    Abstract: A method and device are disclosed which prevent the intrusion of insects onto wood structures by using a barrier capable of retaining pesticide. In the disclosed method, the barrier maintains a minimal effective level of insecticide for a predetermined period of time.
    Type: Grant
    Filed: July 13, 1999
    Date of Patent: October 12, 2004
    Assignee: Battelle Memorial Institute K1-53
    Inventors: Peter Van Voris, Dominic A. Cataldo, Frederick G. Burton
  • Publication number: 20040191211
    Abstract: The present invention is to provide a tissue-specific transporter inhibitor which is not absorbed through the digestive tract and can prevent deterioration in the QOL of a patient caused by diet therapy, and a therapeutic drug for tissue dysfunction diseases and a therapeutic drug for suppressing the progress of chronic renal failure containing the inhibitor as an active ingredient. A tissue-specific transporter inhibitor which is not absorbed through the digestive tract is constructed by introducing a dipeptide which is a ligand of an oligopeptide transporter 1 into a supramolecular structure polyrotaxane wherein its structurally modified active residue is expected to be excellent in the interaction with a transmembrane transporter.
    Type: Application
    Filed: December 19, 2003
    Publication date: September 30, 2004
    Inventors: Akira Tsuji, Ikumi Tamai, Yoshimichi Sai, Noubuhiko Yui, Toru Oya, Ken-ichi Miyamoto
  • Publication number: 20040170596
    Abstract: Cationic starch graft copolymer composed of the monomers a) to d)
    Type: Application
    Filed: February 26, 2004
    Publication date: September 2, 2004
    Inventors: Bernd Hauschel, Bernd Thiele, Thomas Hubbe, Bernhard Jansen
  • Publication number: 20040161404
    Abstract: There are disclosed a method for producing a cross-coupling compound of formula (3):
    Type: Application
    Filed: January 14, 2004
    Publication date: August 19, 2004
    Applicant: Sumitomo Chemical Company, Limited
    Inventors: Tamon Itahashi, Takashi Kamikawa
  • Publication number: 20040161403
    Abstract: The invention provides a multi-arm block copolymer for use in delivering a variety of bioactive agents. The copolymer of the invention contains a central core from which extend multiple (3 or more) copolymer arms. Each copolymer arm possesses an inner polypeptide segment and an outer hydrophilic polymer segment. Thus, the overall structure of the copolymer comprises an inner core region that includes the central core and the inner polypeptide segment, while the outer core region is hydrophilic in nature. The multi-arm copolymer of the invention is particularly useful for delivery of biologically active agents that can be entrapped within the inner core region.
    Type: Application
    Filed: December 24, 2003
    Publication date: August 19, 2004
    Inventors: Xuan S. Zhao, Zhongxu Ren, Kazunori Emoto
  • Publication number: 20040091451
    Abstract: The invention concerns a biocompatible polymer having a mole weight more than 50000 g/mole, preferably 90000 g/mole for fixing biological ligands comprising at least a first linear segment consisting of a hydrophobic homopolymer derived from polymerisation of a hydrophobic monomer A; a second linear segment consisting of a hydrophilic polymer derived from copolymerisation of a monomer B bearing a reactive function X and a hydrophilic monomer C not bearing any reactive function, said second segment being covalently bound to one end of the first segment. The invention also concerns a biological polymer-ligand-conjugate, a device for capturing a target molecule comprising a solid support whereon is immobilised a biological polymer-ligand conjugate and methods for preparing said polymer. The invention is mainly applicable in the field of diagnosis.
    Type: Application
    Filed: January 27, 2003
    Publication date: May 13, 2004
    Inventors: Marie-Therese Charreyre, Franck D'Agosto, Arnaud Favier, Christian Pichot, Bernad Mandrand
  • Patent number: 6716450
    Abstract: Nanocapsules useful for encapsulating bioactive molecules such as proteins are disclosed. These nanocapsules are comprised of branched or hyperbranched polymers and copolymers and have a core-shell structure forming a pocket volume appropriate for complexing and retaining enzymes and other bioactive molecules. The nanoencapsulated bioactive molecule is stable in extreme temperatures and pH, soluble in aqueous or organic solvents, and can be lyophilized to a dry powder for long-term storage without loss of enzyme activity.
    Type: Grant
    Filed: May 17, 2001
    Date of Patent: April 6, 2004
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Ray Yin, Tu-Chen Cheng, H. Dupont Durst, Dujie Qin
  • Patent number: 6689350
    Abstract: A polymer which comprises one or more units of formula (II) in the backbone: —R2—A—L—A—R3—A—L—A—  (II) wherein R2 and R3 are each independently a group that will yield a biologically active compound upon hydrolysis of the polymer; each A is independently an amide or ester linkage; and each L is independently a linking group. Methods of producing these polymer, intermediates useful for preparing these polymers, and methods of using these polymers to deliver biologically active compounds to a host are also provided.
    Type: Grant
    Filed: July 27, 2001
    Date of Patent: February 10, 2004
    Assignee: Rutgers, The State University of New Jersey
    Inventor: Kathryn E. Uhrich
  • Patent number: 6555656
    Abstract: A prion-physiological structure and associated method of formation. A provided abnormal prion has a transforming power over a normal prion to convert the abnornal prion into defective prion that mimics the abnormal prion. A linker molecule is then bonded to the abnormal prion, wherein a polymer that is covalently attached to the linker molecule facilitates formation of a polymerized abnormal prion that does not have the transforming power over the normal prion.
    Type: Grant
    Filed: May 18, 2001
    Date of Patent: April 29, 2003
    Assignee: Albany Medical College
    Inventor: Mark D. Scott
  • Patent number: 6515100
    Abstract: PEG and related polymer derivatives having weak, hydrolytically unstable linkages near the reactive end of the polymer are provided for conjugation to drugs, including proteins, enzymes, small molecules, and others. These derivatives provide a sufficient circulation period for a drug-PEG conjugate and then for hydrolytic breakdown of the conjugate and release of the bound molecule. In some cases, drugs that previously had reduced activity when permanently coupled to PEG can have therapeutically suitable activity when coupled to a degradable PEG in accordance with the invention. The PEG of the invention can be used to impart water solubility, size, slow rate of kidney clearance, and reduced immunogenicity to the conjugate. Controlled hydrolytic release of the bound molecule in the aqueous environment can then enhance the drug delivery system.
    Type: Grant
    Filed: April 2, 2001
    Date of Patent: February 4, 2003
    Assignee: Shearwater Corporation
    Inventor: J. Milton Harris
  • Publication number: 20020182170
    Abstract: The invention relates to an adduct of polyalk(en)yl succinic anhydride and a compound of formula (I): wherein R1 is hydrogen, hydroxyl, hydrocarbyl, hydroxyhydrocarbyl, carbamyl, 1-acetyl, amino, or nitro; R2 is hydrogen, hydroxyl, hydrocarbyl, hydroxyhydrocarbyl, carbamyl, 1-acetyl, amino, or nitro; R3 is hydrogen or hydrocarbyl; and X is O, S or NH; or a derivative of such an adduct. The invention also relates to an emulsifier comprising such an adduct or derivative, and the invention also relates to compositions including such an emulsifier.
    Type: Application
    Filed: March 1, 2002
    Publication date: December 5, 2002
    Inventor: Willem George Boer
  • Patent number: 6468519
    Abstract: Polyanhydrides which degrade into biologically active salicylates and alpha-hydroxy acids and methods of using these polyanhydrides to deliver the salicylates and alpha-hydroxy acids to a host are provided.
    Type: Grant
    Filed: October 21, 1999
    Date of Patent: October 22, 2002
    Assignee: Rutgers, The State University of New Jersey
    Inventor: Kathryn Elizabeth Uhrich
  • Patent number: 6461603
    Abstract: The present invention provides water-soluble polymer conjugates of the anti-malarial drug, artelinic acid, using water soluble and non-peptidic polymer backbones, such as poly(ethylene glycol). The invention includes conjugates made using mPEG, bifunctional PEG and multi-arm PEG. The invention further includes a method of forming such conjugates and a method of treating malaria using the conjugates.
    Type: Grant
    Filed: February 27, 2001
    Date of Patent: October 8, 2002
    Assignee: Shearwater Corporation
    Inventors: Michael David Bentley, Xuan Zhao, Jeremy Lloyd Clark
  • Publication number: 20010041172
    Abstract: The present invention provides water-soluble polymer conjugates of the anti-malarial drug, artelinic acid, using water soluble and non-peptidic polymer backbones, such as poly(ethylene glycol). The invention includes conjugates made using mPEG, bifunctional PEG and multi-arm PEG. The invention further includes a method of forming such conjugates and a method of treating malaria using the conjugates.
    Type: Application
    Filed: February 27, 2001
    Publication date: November 15, 2001
    Applicant: Shearwater Corporation
    Inventors: Michael David Bentley, Xuan Zhao, Jeremy Lloyd Clark
  • Publication number: 20010024644
    Abstract: Crosslinkable polymer compositions are provided which can be in the form of a polymer powder which is redispersible in water or as an aqueous dispersion.
    Type: Application
    Filed: January 25, 2001
    Publication date: September 27, 2001
    Inventors: Klaus Kohlhammer, Klaus Adler, Herbert Eck, Hermann Lutz
  • Patent number: 6294163
    Abstract: The present invention relates to a method for sequestering bile acids in a patient and to particular polymers for use in the method. The method comprises administering a therapeutically effective amount of a guanidinium moiety-containing polymer composition to a mammal, such as a human, whereby bile acids are sequestered. The polymers of the invention comprise guanidinium moieties and optionally, additional substituents such as a hydrophobic group, a quaternary ammonium-containing group or a combination thereof.
    Type: Grant
    Filed: October 2, 1998
    Date of Patent: September 25, 2001
    Assignee: GelTex Pharmaceuticals, Inc.
    Inventors: Pradeep K. Dhal, Stephen R. Holmes-Farley, John S. Petersen
  • Patent number: 6261544
    Abstract: A method for alleviating the symptoms of a cosmetic or dermatologic skin condition is described. An effective amount of a poly(hydroxy acid)/polymer conjugate in a pharmaceutically or cosmetically acceptable vehicle is provided. Topical compositions of the conjugates with another cosmetic or dermatological agent, and compounds of the conjugates having attached physiologically active functional groups, are also provided.
    Type: Grant
    Filed: February 15, 1999
    Date of Patent: July 17, 2001
    Assignee: Focal, Inc.
    Inventors: Arthur J. Coury, Luis Z. Avila, Chandrashekhar P. Pathak, Shikha P. Barman