Ion Exchange Or Chromatography Patents (Class 424/124)
  • Patent number: 9452198
    Abstract: The invention provides, inter alia, conjugates of a hydratable polymer (such as PEG, polyethylene glycol) and a lectin (such as wheat germ agglutinin, WGA), compositions comprising these conjugates, as well as methods and targeted uses of these conjugates and compositions for, e.g., lubricating, maintaining hydration of, rehydrating, and/or inhibiting microorganism colonization of a biological surface in need thereof.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: September 27, 2016
    Assignee: Massachusetts Institute of Technology
    Inventors: Katharina Ribbeck, Thomas Crouzier
  • Patent number: 9375505
    Abstract: The present invention provides a hemostatic porous composite sponge comprising i) a matrix of a biomaterial and ii) one hydrophilic polymeric component comprising reactive groups wherein i) and ii) are associated with each other so that the reactivity of the polymeric component is retained, wherein associated means that said polymeric component is coated onto a surface of said matrix of a biomaterial, or said matrix is impregnated with said polymeric material, or both.
    Type: Grant
    Filed: February 19, 2014
    Date of Patent: June 28, 2016
    Assignees: Baxter International Inc., Baxter Healthcare, S.A.
    Inventors: Hans Christian Hedrich, Joris Hoefinghoff
  • Patent number: 8991387
    Abstract: Heating units, drug supply units and drug delivery articles capable of rapid heating are disclosed. Heating units comprising a substrate and a solid fuel capable of undergoing an exothermic metal oxidation reaction disposed within the substrate are disclosed. These heating units can be actuated by electrical resistance, by optical ignition or by percussion. Drug supply units and drug delivery articles wherein a solid fuel is configured to heat a substrate to a temperature sufficient to rapidly thermally vaporize a drug disposed thereon are also disclosed.
    Type: Grant
    Filed: March 4, 2013
    Date of Patent: March 31, 2015
    Assignee: Alexza Pharmaceuticals, Inc.
    Inventors: Ramesh Damani, Ron L. Hale, Daniel J. Myers, Reynaldo J. Quintana, Dennis W. Solas, Soonho Song, Pravin Soni, Curtis Tom, Krishnamohan Sharma
  • Patent number: 8906648
    Abstract: A process for recovering and purifying refolded heparin binding proteins produced in heterologous host cells includes the step of incubation of the solubilized protein with a polyanionic species such as dextran sulfate.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: December 9, 2014
    Assignee: Genentech, Inc.
    Inventors: Michelle D. Butler, Jeffrey L. Cleland, David W. Kahn, Shelly Pizarro, Charles H. Schmelzer, Marjorie E. Winkler
  • Patent number: 8846035
    Abstract: The present invention describes methods and tools for preparing a population of monodisperse polymer microparticles, which are of particular interest in the field of drug delivery.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: September 30, 2014
    Assignee: Koninklijke Philips N.V.
    Inventors: Marcel Rene Bohmer, Johannes Antonius Maria Steenbakkers, Suzanna Helena Petronella Maria De Winter, Anne Bechet, Rudolf Verrijk
  • Patent number: 8729242
    Abstract: Methods for reducing the T-cell mitogenicity of lectin compositions are provided. In one aspect this is achieved by chemically modifying mitogenic lectin compositions under optimized conditions. Additionally or alternatively, the reduction in T-cell mitogenicity is achieved by removing unmodified subunits chemically modified mixtures. Modified lectin compositions with reduced T-cell mitogenicity are also provided as are uses of the inventive compositions.
    Type: Grant
    Filed: January 27, 2010
    Date of Patent: May 20, 2014
    Assignee: Smartcells, Inc.
    Inventors: Thomas M. Lancaster, Wenyi Cai, Ryan Faucette, Matthew Pecukonis, Todd C. Zion
  • Patent number: 8703123
    Abstract: Provided is a method of obtaining biologically active recombinant human G-CSF from inclusion bodies, wherein the solubilization and refolding process can be performed at ambient temperature and the purification step comprises reversed phase chromatography (RP), in particular RP-HPLC. The G-CSF preparation so obtained is characterized by high purity and homogeneity.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: April 22, 2014
    Assignee: BioGeneriX GmbH
    Inventors: Walter Hinderer, Christian Scheckermann
  • Patent number: 8673312
    Abstract: Helicobacter pylori is closely associated with chronic gastritis, peptic ulcer disease, and gastric adenocarcinoma. Helicobacter pylori neutrophil-activating protein (HP-NAP), a virulence factor of Helicobacter pylori, plays an important role in pathogenesis of Helicobacter pylori infection. Since HP-NAP has been proposed as a candidate vaccine against Helicobacter pylori infection, an efficient way to obtain pure HP-NAP needs to be developed. In the present invention, recombinant HP-NAP expressed in Bacillus subtilis and Escherichia coli was purified through a single step of DEAE SEPHADEX ion-exchange chromatography with high purity. Also, purified recombinant HP-NAP was able to stimulate neutrophils to produce reactive oxygen species. Thus, recombinant HP-NAP obtained from our Bacillus subtilis expression system and Escherichia coli expression system is functionally active.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: March 18, 2014
    Assignee: National Tsing Hua University
    Inventors: Hua-Wen Fu, Kuo-Shun Shih, Chih-Chang Lin, Yu-Chi Yang
  • Patent number: 8647621
    Abstract: This invention is directed to processes for reducing the level of free carbohydrate from a solution of protein-linked carbohydrate (conjugate) and non-linked carbohydrate. In this process, the conjugate is adsorbed to a hydrophobic membrane while the carbohydrate is not. The conjugate is then desorbed from the membrane, yielding a solution that is substantially reduced in free carbohydrate.
    Type: Grant
    Filed: July 27, 2010
    Date of Patent: February 11, 2014
    Assignee: Fina BioSolutions, LLC
    Inventor: Andrew Lees
  • Patent number: 8387612
    Abstract: Heating units, drug supply units and drug delivery articles capable of rapid heating are disclosed. Heating units comprising a substrate and a solid fuel capable of undergoing an exothermic metal oxidation reaction disposed within the substrate are disclosed. These heating units can be actuated by electrical resistance, by optical ignition or by percussion. Drug supply units and drug delivery articles wherein a solid fuel is configured to heat a substrate to a temperature sufficient to rapidly thermally vaporize a drug disposed thereon are also disclosed.
    Type: Grant
    Filed: June 16, 2009
    Date of Patent: March 5, 2013
    Assignee: Alexza Pharmaceuticals, Inc.
    Inventors: Ramesh Damani, Ron L. Hale, Daniel J. Myers, Reynaldo J. Quintana, Dennis W. Solas, Soonho Song, Pravin Soni, Curtis Tom, Kirshnamohan Sharma
  • Patent number: 8178108
    Abstract: The present invention relates generally to the production, purification, and isolation of human growth hormone (hGH). More particularly, the invention relates to the production, purification, and isolation of substantially purified hGH comprising non-naturally encoded amino acids and hGH from recombinant host cells or culture medium including, for example, yeast, insect, mammalian and bacterial host cells. The process of the present invention is also useful for purification of hGH linked to polymers or other molecules.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: May 15, 2012
    Assignee: Ambrx, Inc.
    Inventors: Ying Buechler, Ricky Lieu, Michael Ong, Stuart Bussell, Nick Knudsen, Ho Sung Cho
  • Publication number: 20110318409
    Abstract: The invention concerns wheat germ ferment, its biologically active fractions, the process for their production, the pharmaceutical preparations containing them and their uses.
    Type: Application
    Filed: March 5, 2010
    Publication date: December 29, 2011
    Inventors: Máté Hidvégi, Gyula Bencze, György Kéri, László Õrfi
  • Patent number: 8058391
    Abstract: The invention claims a process for making an insulin-oligomer conjugate IN-105. IN-105 precursor having formula G-A-V-R-[B-Chain]-R-D-A-D-D-R-[A-Chain] is cloned and expressed in Pichia. The biosynthetic precursor is then conjugated with an activated oligomer. The IN-105 precursor-oligomer conjugate is then treated with protease and purified to afford active insulin-oligomer conjugate of formula insulin-OC—CH2—CH2—(OCH2CH2)3—OCH3.
    Type: Grant
    Filed: October 13, 2005
    Date of Patent: November 15, 2011
    Assignee: Biocon Limited
    Inventors: Nitesh Dave, Partha Hazra, Anuj Goel, Nita Roy, Anand Khedkar, Harish Iyer, Gautam Krishnan, H. S. Manjunath, Shrikumar Suryanarayan, Govindasamy Manikam, Goldy Sachdev, Mayank Garg
  • Patent number: 7959926
    Abstract: The present invention relates generally to the production, purification, and isolation of human growth hormone (hGH). More particularly, the invention relates to the production, purification, and isolation of substantially purified hGH comprising non-naturally encoded amino acids and hGH from recombinant host cells or culture medium including, for example, yeast, insect, mammalian and bacterial host cells. The process of the present invention is also useful for purification of hGH linked to polymers or other molecules.
    Type: Grant
    Filed: October 17, 2007
    Date of Patent: June 14, 2011
    Assignee: Ambrx, Inc.
    Inventors: Ying Buechler, Ricky Lieu, Michael Ong, Stuart Bussell, Nick Knudsen, Ho Sung Cho
  • Patent number: 7947473
    Abstract: The present invention relates generally to the production, purification, and isolation of human growth hormone (hGH). More particularly, the invention relates to the production, purification, and isolation of substantially purified hGH comprising non-naturally encoded amino acids and hGH from recombinant host cells or culture medium including, for example, yeast, insect, mammalian and bacterial host cells. The process of the present invention is also useful for purification of hGH linked to polymers or other molecules.
    Type: Grant
    Filed: January 31, 2008
    Date of Patent: May 24, 2011
    Assignee: AMBRX, Inc.
    Inventors: Ying Buechler, Ricky Lieu, Michael Ong, Stuart Bussell, Nick Knudsen, Ho Sung Cho
  • Patent number: 7763706
    Abstract: Described is a method for the preparation of a mixture of peptides, having an arginine and lysine content of at least 20 w/w %, based on the protein content, from at least one protein source, to a preparation comprising a mixture of arginine- and lysine-rich peptides, comprising at least 20 w/w % arginine and lysine, and to the use of the said preparation as active compound in a medicament, supplement, beverage or food product.
    Type: Grant
    Filed: July 11, 2003
    Date of Patent: July 27, 2010
    Assignee: Campina B.V.
    Inventors: Anita Dekker, Johanna Maria Henrica van der Steen
  • Patent number: 7687608
    Abstract: Methods for reducing the T-cell mitogenicity of lectin compositions are provided. In one aspect this is achieved by chemically modifying mitogenic lectin compositions under optimized conditions. Additionally or alternatively, the reduction in T-cell mitogenicity is achieved by removing unmodified subunits chemically modified mixtures. Modified lectin compositions with reduced T-cell mitogenicity are also provided as are uses of the inventive compositions.
    Type: Grant
    Filed: October 19, 2006
    Date of Patent: March 30, 2010
    Assignee: SmartCells, Inc.
    Inventors: Thomas M. Lancaster, Wenyi Cai, Ryan Faucette, Matthew Pecukonis, Todd C. Zion
  • Patent number: 7658963
    Abstract: Black currant anthocyanin-containing compositions for foods comprising 1 to 25% by weight of black currant anthocyanin on the basis of solid matters; a process for producing a black currant anthocyanin-containing composition for foods characterized by purifying and concentrating black currant juice employed as a starting material by using a charged reverse osmosis membrane; functional foods and drinks characterized by containing the above compositions for foods; and the above-described compositions for foods and the above-described functional foods and drinks having an effect of improving visual function, a function of improving blood fluidity, and/or a function of lowering blood pressure. The conventional black currant anthocyanin compositions have a low black currant anthocyanin content, strong acidity and poor stability, which makes them unsuitable as additives for foods and drinks.
    Type: Grant
    Filed: June 30, 2000
    Date of Patent: February 9, 2010
    Assignee: Meiji Seika Kaisha, Ltd.
    Inventors: Hitoshi Matsumoto, Shigeru Tominaga, Mitsuo Kishi, Takashi Kawakami, Takahisa Tokunaga, Masao Hirayama
  • Patent number: 7018814
    Abstract: Provided is a method of purifying a vancomycin from a fermentation broth of a microorganism containing vancomycin, including passing the fermentation broth of a microorganism containing vancomycin through a strong acid cation exchange resin, a weak base anion exchange resin, alumina and a hydrophobic absorbent resin sequentially.
    Type: Grant
    Filed: September 17, 2004
    Date of Patent: March 28, 2006
    Assignee: CJ Corporation
    Inventors: Ju Won Lee, Yun Taek Jung, Jung Woo Suh, Kwang Seob Lee
  • Patent number: 6730299
    Abstract: A biocompatible fluid adhesive protein foam, which is bioresorbable and nontoxic, for surgical and/or therapeutic use, in particular for protecting/cicatrizing tissue wounds and for attaching biological tissues to each other or to an implanted biomaterial. The biocompatible fluid adhesive protein foam includes a biocompatible fluid adhesive protein matrix, which is bioresorbable and nontoxic, containing a biocompatible and nontoxic gas or mixture of gases. Further, a process and a kit for preparing such a foam are provided.
    Type: Grant
    Filed: March 20, 2001
    Date of Patent: May 4, 2004
    Assignee: Imedex Biomateriaux
    Inventors: Jean-Louis Tayot, Yves Bayon, Philippe Gravagna, Michel Marie Dubois
  • Patent number: 6503738
    Abstract: A scalable method for the production of highly purified plasmid DNA in Escherichia coli is described, which method includes growing plasmid-containing cells to a high biomass in exponential growth and lysing the cells by raising the pH of the culture to a carefully controlled pH value in which chromosomal DNA is denatured but plasmid DNA is reversibly renatured. The method has been developed for the production of pharmaceutical grade DNA for use in in vivo and ex vivo gene therapy.
    Type: Grant
    Filed: June 10, 1999
    Date of Patent: January 7, 2003
    Assignee: Cobra Therapeutics Limited
    Inventors: David R. Thatcher, Anthony Hitchcock, Julian A. J. Hanak, Diane L. Varley
  • Patent number: 6447764
    Abstract: The invention relates to a method for isolating anionic organic substances from aqueous systems using polymer nanoparticles with cationic pH-sensitive surface groups. Extraction can be carried out directly from diluted solutions, biological media (blood plasma, serum, urine, etc.) and complex buffer systems (e.g. PCR preparations contain detergents) without prior derivatization of the samples or addition of binding buffers. After separation from the surrounding medium the conjugates of the corresponding substances and polymer nanoparticles obtained in this manner can be purified through additional washing steps and effectively desalinated. Owing to the pH-sensitivity of the basic surface groups, the bound substances can be released in a targeted manner after separation by modification of the pH of the medium. By using volatile bases contamination of the released samples with ionic residues can be avoided.
    Type: Grant
    Filed: February 17, 2000
    Date of Patent: September 10, 2002
    Assignee: Degussa AG
    Inventors: Ernst Bayer, Hans Fritz, Martin Maier, Jens Schewitz, Michael Gerster
  • Publication number: 20010018416
    Abstract: New compositions and methods for treating patients suffering from hepatitis-C, AIDS, aberrant apoptosis which include N-acetyl-D-glucosaminyl(&bgr;-1-4)-N-Acetyl-muramyl-L-ananyl-D-isoglutamine (GMDP) of at least 98% purity and provided either alone, as an active ingredient of blastolysine, or in combination with an aminosugar such as N-acetyl-glucosamine(NAG). The high purity GMDP has a decreased amount immunogenic impurities and demonstrates cell protection as opposed to solely immunostimulatory effects, while a synergistic cell protective effect is exhibited when GMDP in combined with NAG. The new compositions modulate FasL mediated apoptosis while simultaneously stimulating TNF-&agr; production and further selectively inhibiting TNF-&agr; receptor p55 (TNFR1), providing a treatment for patients suffering from hepatitis-C, AIDS or aberrant apoptosis.
    Type: Application
    Filed: May 13, 1999
    Publication date: August 30, 2001
    Inventors: VLADIMIR I. SLESAREV, TODOR DIMITROV
  • Patent number: 6154706
    Abstract: An apparatus for predicting a residual hormone concentration in a patient after a removal of a portion of the patient's glandular tissue which secretes the hormone, includes an input device constructed to receive a plurality of measured hormone concentrations corresponding to a plurality of human fluid samples taken from a patient at a plurality of sample times, respectively; and further includes a computer processor configured to iteratively calculate a residual hormone concentration. In accordance with one feature of the present invention, the computer processor is configured to generate data denoting a residual amount of glandular tissue that will remain in the patient after the removal of the portion of the patient's glandular tissue; and the apparatus further comprises an output device constructed to output the generated data denoting the residual amount of glandular tissue.
    Type: Grant
    Filed: April 9, 1999
    Date of Patent: November 28, 2000
    Inventors: Alan T. Remaley, Mark Ruddel, Phillip C. Miller
  • Patent number: 5981735
    Abstract: A scalable method for the production of highly purified plasmid DNA in Escherichia coli is described, which method includes growing plasmid-containing cells to a high biomass in exponential growth and lysing the cells by raising the pH of the culture to a carefully controlled pH value in which chromosomal DNA is denatured but plasmid DNA is reversibly renatured. The method has been developed for the production of pharmaceutical grade DNA for use in in vivo and ex vivo gene therapy.
    Type: Grant
    Filed: February 12, 1997
    Date of Patent: November 9, 1999
    Assignee: Cobra Therapeutics Limited
    Inventors: David R. Thatcher, Anthony Hitchcock, Julian A.J. Hanak, Diane L. Varley
  • Patent number: 5854390
    Abstract: The present invention discloses a new method for the purification of vancomycin hydrochloride by preparative HPLC (method of displacement chromatography), whereby the chromatographic purity of the product is essentialy improved.The chromatography is performed on a reverse stationary phase with a mobile phase consisting of an organic or inorganic acid or of a buffer with possible additives, with different displacing agents, at a defined pH and temperature as well as the amount and concentration of vancomycin hydrochloride.The process is distinguished by the excellent yield and exceptional chromatographic purity 95.5% area of the obtained product and, besides, it represents an ecologically irreproachable process.The vancomycin hydrochloride purified according to the present invention is useful for all types of application since the portion of impurities it contains is for one third lower than in hitherto known commercially available products.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: December 29, 1998
    Assignee: LEK, tovarna farmacevtskih in kemicnih izdelkov, d.d.
    Inventors: Rok Grahek, Andrej Bastarda
  • Patent number: 5853720
    Abstract: The present invention discloses a new process for the purification of vancomycin hydrochloride by combining preparative chromatography on a silica gel column and the precipitation with ethanol from a salt-water-ethanolic solution without intermediary filtering, whereby the chromatographic purity of the product is improved.The chromatography is carried out on a column containing a silica gel stationary phase and an alkaline water-methanolic mobile phase at defined pH, mobile phase flow and temperature as well as the amount and concentration of vancomycin hydrochloride. The process is distinguished by the yield and chromatographic purity of the obtained product of about 93% area.Vancomycin hydrochloride purified according to the present invention is useful for peroral as well as parenteral administration since the portion of impurities it contains is for one third smaller than in hitherto available product.
    Type: Grant
    Filed: July 28, 1997
    Date of Patent: December 29, 1998
    Assignee: LEK, tovarna farmacevtskih in kemicnih izdelkov, d.d.
    Inventors: Zlatko Pflaum, Robert Turkalj
  • Patent number: 5594116
    Abstract: The disclosure describes highly specific tryptase polyclonal antibodies, and a method to purify the antibodies. Specifically, the invention relates to polyclonal antibodies which have the capacity to capture tryptase out of solution, a process to generate the antibodies, and an enzyme-linked immunosorbent assay (ELISA) for human tryptase which utilizes the antibodies.
    Type: Grant
    Filed: November 8, 1995
    Date of Patent: January 14, 1997
    Assignee: Promega Corporation
    Inventors: Andrew L. Niles, Mary Haak-Frendscho
  • Patent number: 5567615
    Abstract: The present invention provides an affinity separation method involving dynamic filtration.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: October 22, 1996
    Assignee: Pall Corporation
    Inventors: Peter J. Degen, Tony Alex, Richard F. Salinaro
  • Patent number: 5547666
    Abstract: The present invention is directed to new antibiotic substances denominated antibiotic GE 2270 factors A.sub.1, A.sub.2, A.sub.3 and H, the addition salts thereof, the pharmaceutical compositions thereof and their use as medicaments, particularly in the treatment of infectious diseases involving microorganisms susceptible to them.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 20, 1996
    Assignee: Gruppo Lepetit SpA
    Inventors: Enrico Selva, Paolo Tavecchia
  • Patent number: 5139778
    Abstract: The present invention is directed to new antibiotic substances denominated antibiotic GE 2270 factors A.sub.1, A.sub.2, A.sub.3 and H, the additional salts thereof, the pharmaceutical compositions thereof and their use as medicaments, particularly in the treatment of infectious diseases involving microorganisms susceptible to them.
    Type: Grant
    Filed: July 2, 1990
    Date of Patent: August 18, 1992
    Assignee: Gruppo Lepetit SpA
    Inventors: Enrico Selva, Paolo Tavecchia
  • Patent number: 5023079
    Abstract: An antimycotic agent having a high degree of antimicrobial activity towards Eumycetes and with a level of toxicity lower than that of heptaene antibiotic V-28-3 is disclosed. This compound is a methyl ester derivative of heptaene antibiotic V-28-3.
    Type: Grant
    Filed: September 1, 1989
    Date of Patent: June 11, 1991
    Assignee: Ajinomoto Co., Inc.
    Inventors: Yasuo Komoda, Yasunori Yokogawa, Masahiko Okunishi, Koichi Ishii, Hiroshiro Shibai, Ryosaku Noumi
  • Patent number: 4942032
    Abstract: A method for producing a novel antifungal product from a Pediococcus species is described. The preferred product (AFP) comprises a compound which contains valine and lactic acid and has a molecular weight of less than about 500 daltons. The product (AFP) is particularly useful in retarding fungal growth in foods and other materials in need thereof.
    Type: Grant
    Filed: January 27, 1989
    Date of Patent: July 17, 1990
    Assignee: Microlife Technics, Inc.
    Inventors: Peter A. Vandenbergh, Blair S. Kunka
  • Patent number: 4868285
    Abstract: Imidazole/vancomycin complexes are prepared by containing an imidazole, preferably imidazole or N-methylimidazole, with a member of the vancomycin family, preferably Vancomycin itself.The complexes are useful in the purification of vancomycin.
    Type: Grant
    Filed: January 16, 1987
    Date of Patent: September 19, 1989
    Assignee: Glaxo Group Limited
    Inventor: Wilfred F. Wall
  • Patent number: 4804534
    Abstract: A novel antibiotic, A 42867, is prepared by cultivating the strain Nocardia sp. ATCC 53492, or an antibiotic A 42867-producing mutant or variant thereof, under submerged aerobic conditions in the presence of assimilable sources of carbon, nitrogen and inorganic salts. The antibiotic and its addition salts are useful in the treatment of infectious diseases and as growth promotant agents.
    Type: Grant
    Filed: July 28, 1987
    Date of Patent: February 14, 1989
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Ernesto Riva, Enrico Selva, Maurizio Denaro, Giovanni Cassani, Francesco Parenti
  • Patent number: 4792522
    Abstract: A novel complex designated herein as rigolettone complex is produced by fermentation of Streptomyces aburaviensis strain C-38,242 (ATCC 39290). The complex and its purified bioactive components, jildamycin and mantuamycin, exhibit antitumor activity in mouse tumor systems.
    Type: Grant
    Filed: August 22, 1985
    Date of Patent: December 20, 1988
    Assignee: Bristol-Myers Company
    Inventors: Donald E. Nettleton, Jr., Stanley W. Bray, James A. Bush, William T. Bradner
  • Patent number: 4613503
    Abstract: Antibiotic A26201-1 and antibiotic A26201-2 are produced by the novel microorganism, Actinoplanes species A26201 (ATCC 39573), under aqueous aerobic fermentation conditions. The antibiotics are useful for inhibiting bacteria, particularly gram positive bacteria, and are also useful for promoting the growth of monogastric and ruminant animals.
    Type: Grant
    Filed: October 11, 1984
    Date of Patent: September 23, 1986
    Assignee: The Dow Chemical Company
    Inventors: Joseph W. Whalen, Gregory L. Swartz, Lisa J. Rheaume, Karen M. McCoy
  • Patent number: 4542018
    Abstract: The invention refers to an individual antibiotic substance selected from the group consisting of Teichomycin A.sub.2 factor 1, Teichomycin A.sub.2 factor 2, Teichomycin A.sub.2 factor 3, Teichomycin A.sub.2 factor 4 and Teichomycin A.sub.2 factor 5 in substantially pure form, and to the method of producing them by recovery from Teichomycin A.sub.2, a known antibiotic substance, by means of high-efficiency chromatographic methods. The single pure Teichomycin A.sub.2 factor 1, Teichomycin A.sub.2 factor 2, Teichomycin A.sub.2 factor 3, Teichomycin A.sub.2 factor 4 and Teichomycin A.sub.2 factor 5 are biologically distinguishable from Teichomycin A.sub.2 in that they have a higher degree of antibiotic activity against susceptible microorganisms.
    Type: Grant
    Filed: June 7, 1983
    Date of Patent: September 17, 1985
    Assignee: Gruppo Lepetit S.p.A.
    Inventors: Angelo Borghi, Rosa Pallanza, Carolina Coronelli, Giovanni Cassani
  • Patent number: 4530784
    Abstract: A method for extracting large quantities of an active biological factor that restores contact inhibition of growth to malignant cell types of different mammalian species.
    Type: Grant
    Filed: August 19, 1983
    Date of Patent: July 23, 1985
    Assignee: New York University
    Inventor: Martin J. Rosenberg
  • Patent number: 4442655
    Abstract: A dry preparation having a foam-like and, respectively, fleece-like structure obtained by freeze-drying consists, apart from thrombin in at least catalytically active amounts, substantially of approx. 10 to 95% by weight of fibrin and approx. 5 to 90% by weight of fibrinogen. For the preparation thereof, fibrin is produced in situ in an aqueous solution containing fibrinogen and thrombin and the resultant reaction mixture is deep-frozen and lyophilized. As further constituents of the dry preparation active substances such as e.g. antibiotics, natural bone material and/or a synthetic, bone-forming substitute, glycoproteins, coagulation-conducive substances and the like and/or fibrinolysis inhibitors come into consideration. The dry preparation is provided mainly for use as a wound toilet material, as a filling material for bone cavities and/or as a supporting material for further active substances.
    Type: Grant
    Filed: June 25, 1982
    Date of Patent: April 17, 1984
    Assignee: Serapharm Michael Stroetmann
    Inventor: Michael Stroetmann
  • Patent number: 4440753
    Abstract: Purification of glycopeptide antibiotics actaplanin and vancomycin by adsorption on non-functional resins followed by elution of the antibiotic from the resin with aqueous solvents.
    Type: Grant
    Filed: March 15, 1982
    Date of Patent: April 3, 1984
    Assignee: Eli Lilly and Company
    Inventors: Mack H. McCormick, Gene M. Wild
  • Patent number: 4335108
    Abstract: Disclosed and claimed is an improved fermentation process for preparing the known antibiotic U-43,120, herein referred to as paulomycin. Also disclosed and claimed are the novel and useful antibiotics paulomycin A and paulomycin B.
    Type: Grant
    Filed: August 25, 1980
    Date of Patent: June 15, 1982
    Assignee: The Upjohn Company
    Inventors: Alexander D. Argoudelis, Vincent P. Marshall, Leroy E. Johnson
  • Patent number: 4308254
    Abstract: A process for preparing a porous solid material for use in a chromatography column and which is capable of fixing reversibly biological macromolecules comprises coating a porous inorganic support with a polysaccharide polymer having .alpha.-glycol groups which undergo oxidative scission, subjecting the polysaccharide polymer to an oxidative scission reaction, reacting the resulting oxidized polysaccharide polymer with an amino molecule or macromolecule having the formula R'--NH.sub.2 to produce a polysacchride polymer having the formula R.sub.4 --CH.dbd.N--R' and reducing the imine bond in said immediately above defined polysaccharide polymer to a stable amine bond.
    Type: Grant
    Filed: September 19, 1978
    Date of Patent: December 29, 1981
    Assignee: Institut Merieux
    Inventors: Jean-Louis Tayot, Michel Tardy
  • Patent number: 4259450
    Abstract: Antibiotic acanthomycin (U-53,827) produced by the controlled fermentation of the microorganism Streptomyces espinosus subsp. acanthus, NRRL 11081. This antibiotic and its base addition salts are active against Gram-positive bacteria. Accordingly, they can be used in various environments to eradicate or control such bacteria.
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: March 31, 1981
    Assignee: The Upjohn Company
    Inventors: Alexander D. Argoudelis, Thomas F. Brodasky, Fritz Reusser
  • Patent number: 4251511
    Abstract: Novel antibiotic U-59,761 producible in a fermentation under controlled conditions using a biologically pure culture of the microorganism Saccharopolyspora hirsuta strain 367, NRRL 12045. This antibiotic is active against various microorganisms, for example, Staphylococcus aureus, Streptococcus pyogenes, Sarcina lutea, Klebsiella pneumoniae, Mycobacterium avium, and Bacteroides fragilis. Thus, antibiotic U-59,761 can be used in various environments to eradicate or control such bacteria.
    Type: Grant
    Filed: October 2, 1979
    Date of Patent: February 17, 1981
    Assignee: The Upjohn Company
    Inventors: Howard A. Whaley, John H. Coats
  • Patent number: 4198338
    Abstract: Fermentation broths or impure solutions containing thienamycin, a substance having antibiotic activity against gram-negative and gram-positive microorganisms, are purified using a sequence of ion exchange resins, starting with an anion exchange resin of the polystyrene-trimethylammonium type in the HCO.sub.3 -cycle, and ending with absorption on and elution from a polymeric cross-linked polystyrene-type resin adsorbent. Variations in the intermediate steps, e.g. different resins and eluates are possible and are illustrated within.
    Type: Grant
    Filed: March 13, 1978
    Date of Patent: April 15, 1980
    Assignee: Merck & Co., Inc.
    Inventors: Laszlo R. Treiber, Vincent P. Gullo
  • Patent number: 4189473
    Abstract: It has been found that a novel antibiotic can be obtained by the fermentation of certain strains of Streptomyces olivaceus and related organisms. In addition to being a potent antibiotic this new material which we have designated MM 13902 acts synergistically with penicillins and cephalosporins.
    Type: Grant
    Filed: September 22, 1976
    Date of Patent: February 19, 1980
    Assignee: Beecham Group Limited
    Inventors: Martin Cole, John D. Hood, Dennis Butterworth
  • Patent number: 4181716
    Abstract: It has been found that an antibiotic can be obtained by the fermentation of certain strains of Streptomyces olivaceus and related organisms and when pure this antibiotic is an extremely potent inhibitor of many .beta.-lactamases. This antibiotic which we designate MM 4550A may be obtained in substantially pure form by the chromatographic purification of the crude antibacterial complex obtained from the culture medium.
    Type: Grant
    Filed: September 20, 1976
    Date of Patent: January 1, 1980
    Assignee: Beecham Group Limited
    Inventors: Martin Cole, John D. Hood, Dennis Butterworth
  • Patent number: 4168268
    Abstract: Fermentation broths or impure solutions containing thienamycin, a substance having antibiotic activity against gram-negative and gram-positive microorganisms, are isolated using liquid ion exchange systems.
    Type: Grant
    Filed: August 24, 1978
    Date of Patent: September 18, 1979
    Assignee: Merck & Co., Inc.
    Inventors: Rathin Datta, George T. Wildman
  • Patent number: 4163051
    Abstract: A novel antibiotic designated herein MM 17880 may be obtained from the cultivation of strains of Streptomyces olivaceus and related organisms. In addition to being potent antibacterial agents, MM 17880 and its salts inhibit .beta.-lactamase obtained from may organisms so that it shows a synergistic antibacterial effect when combined with .beta.-lactam antibiotics.
    Type: Grant
    Filed: September 23, 1976
    Date of Patent: July 31, 1979
    Assignee: Beecham Group Limited
    Inventors: Stephen J. Box, John D. Hood