Patents Examined by Gollamudi S. Kishore
  • Patent number: 6733784
    Abstract: An expanding tablet is described comprising a drug release controlling membrane material. After swallowing, the tablet hydrates and expands such that the membrane ruptures to directly expose some surfaces of the core tablet to hydrating and eroding liquids, thus generating in situ a tablet which is platform supported on non-exposed surfaces, and which releases active ingredient in approximately zero order fashion. More particularly, the dosage form is adapted for controlled release of various pharmaceuticals. A working embodiment of the tablet was a spray-coated tablet comprising a core having greater than 25% of an expandable material which expands upon exposure to an aqueous environment and at least one active ingredient, e.g., glipizide, and an outer rupturable coating surrounding the core comprising a rate release modifying membrane and a water-soluble modifier. A method for administering an active ingredient also is described.
    Type: Grant
    Filed: December 31, 2002
    Date of Patent: May 11, 2004
    Assignee: The State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University
    Inventor: James W. Ayres
  • Patent number: 6733776
    Abstract: The invention provides a method to provide hair growth by stimulating extrusion of hair from a hair follicle which employs a liposomal formulation of an active ingredient which stimulates extrusion when taken up by the hair follicles.
    Type: Grant
    Filed: May 20, 1997
    Date of Patent: May 11, 2004
    Assignee: AntiCancer, Inc.
    Inventors: Lingna Li, Valeryi Lishko
  • Patent number: 6726924
    Abstract: A liposome-capsule dosage unit system for the delivery of a biologically active material is formed by encapsulating a biologically active materials in liposomes and then placing the liposome encapsulated material into a capsule. The capsule is typically a soft gel capsule or a two piece capsule capable of tolerating a certain amount of water. A less water tolerant capsule can be employed if the liposomes are dehydrated prior to placement within the capsule. Biologically active material include drugs, nutritional supplements, vitamins, minerals, enzymes, hormones, proteins and polypeptides. The system is especially suited for the delivery of materials with poor oral solubility, materials that are not absorbed or are poorly absorbed from the gastrointestinal tract, and materials that have conventionally been given by an invasive route. The system can be administered orally, intra-occularly, intranasally, rectally, or vaginally.
    Type: Grant
    Filed: September 4, 1998
    Date of Patent: April 27, 2004
    Assignee: Biozone Laboratories, Inc.
    Inventor: Brian C. Keller
  • Patent number: 6726925
    Abstract: A liposome contains an active agent and has a gel-phase lipid bilayer membrane comprising phospholipid and a surface active agent. The phospholipids are the primary lipid source for the lipid bilayer membrane and the surface active agent is contained in the bilayer membrane in an amount sufficient to increase the percentage of active agent released at the phase transition temperature of the lipid bilayer, compared to that which would occur in the absence of the surface active agent. The surface active agent is present in the lipid bilayer membrane so as to not destabilize the membrane in the gel phase.
    Type: Grant
    Filed: December 9, 1999
    Date of Patent: April 27, 2004
    Assignee: Duke University
    Inventor: David Needham
  • Patent number: 6723309
    Abstract: A hair cleanser comprising is a mixture of conditioners, cooling agents, emulsifiers, humectants, pH balancing agents, preservatives, thickeners, and vitamins. The cleanser may also include astringents, emollients, fragrances, re-fatting agents and botanicals.
    Type: Grant
    Filed: June 10, 2002
    Date of Patent: April 20, 2004
    Inventor: Jeffrey Alan Deane
  • Patent number: 6720005
    Abstract: An expanding tablet is described comprising a drug release controlling membrane material. After swallowing, the tablet hydrates and expands such that the membrane ruptures to directly expose some surfaces of the core tablet to hydrating and eroding liquids, thus generating in situ a tablet which is platform supported on non-exposed surfaces, and which releases active ingredient in approximately zero order fashion. More particularly, the dosage form is adapted for controlled release of various pharmaceuticals. A working embodiment of the tablet was a spray-coated tablet comprising a core having greater than 25% of an expandable material which expands upon exposure to an aqueous environment and at least one active ingredient, e.g., glipizide, and an outer rupturable coating surrounding the core comprising a rate release modifying membrane and a water-soluble modifier. A method for administering an active ingredient also is described.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: April 13, 2004
    Assignee: The State of Oregon acting by and through the State Board of Higher Education on behalf of Oregon State University
    Inventor: James W. Ayres
  • Patent number: 6713088
    Abstract: A low viscosity filler boron nitride agglomerate particles having a generally spherical shape bound together by an organic binder and to a process for producing a BN powder composition of spherically shaped boron nitride agglomerated particles having a treated surface layer which controls its viscosity.
    Type: Grant
    Filed: January 3, 2001
    Date of Patent: March 30, 2004
    Assignee: General Electric Company
    Inventors: David Lodyga, Joseph W. Tereshko, Ajit Sane, Thomas Fox
  • Patent number: 6706280
    Abstract: Novel compounds of formula in which R1 and R2 are phospholipid fatty acid residues and A is an aliphatic and/or cycloaliphatic hydrocarbon chain optionally substituted by hydroxy and/or further carboxylic functions. The novel compounds are useful for making liposomes of enhanced stability and entrapping capacity.
    Type: Grant
    Filed: August 16, 1999
    Date of Patent: March 16, 2004
    Assignee: Bracco Research S.A.
    Inventors: Hervé Tournier, Bernard Lamy
  • Patent number: 6699490
    Abstract: Prolonged parenteral release into the circulatory system of a cow of a bioactive bovine somatotropin at desirably effective levels can be achieved using novel compositions in which the bovine somatotropin is present in an aqueous liquid at a dose of at least about 150 mg and at a concentration of at least about 50 mg/ml. The aqueous bovine somatotropin formulation provides for the sustained release of bovine somatotropin into the circulatory system of the animal for greater than three (3) days.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: March 2, 2004
    Assignee: The Upjohn Co.
    Inventors: Michael John Hageman, Margaret Luise Possert
  • Patent number: 6699499
    Abstract: Disclosed is a new structural class of amphiphilic molecules which incorporate a hydrophilic material or polymer attached, at spatially distinct sites, to at least two hydrophobic residues. Certain of the amphiphilic molecules comprise a plurality of hydrophobic moieties. All such amphiphilic molecules have a common structural motif and, in contact with water, display surface activity and self-assemble into multimolecular aggregates and liquid crystalline phases. Also disclosed are enhanced stability liposomes that incorporate such amphiphilic molecules via unique interactions, and methods of using such formulations in a variety of applications including drug delivery, nutrition, bio-diagnostics, cosmetics, blood products and related applications.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: March 2, 2004
    Assignee: Nutrimed Biotech
    Inventor: Rajindra Aneja
  • Patent number: 6696080
    Abstract: Liposomal bupivacaine compositions are prepared using an ammonium sulfate gradient loading procedure, at a pH which prevents precipitation of the drug from the loading solution. Also described are liposome suspensions comprising ‘GMV’ (giant multivesicular) liposomes and methods for their preparation. The liposomal compositions are characterized by high drug-to-lipid ratios and provide long term analgesia.
    Type: Grant
    Filed: November 13, 2000
    Date of Patent: February 24, 2004
    Assignees: Yissum Research Development Company of the Hebrew University of Jerusalem, New York University
    Inventors: Elijah M. Bolotin, Gilbert J. Grant, Yechezkel Barenholz, Herman Turndorf, Boris Piskoun
  • Patent number: 6696084
    Abstract: The present invention relates to a novel spray drying process for the preparation of pharmaceutical compositions containing small particles of phospholipid-stabilized fenofibrate. This invention also relates to spray dried powdered compositions prepared according to this process, and to dosage forms of fenofibrate (capsules, tablets, powders, granules, and dispersions) prepared from these powdered compositions. The powdered compositions and dosage forms are useful in the treatment of dyslipidemia and dyslipoproteinemia and have the advantage that they provide reduced in vivo variability in the bioavailability of fenofibrate active species among fed and fasted patients when administered orally.
    Type: Grant
    Filed: April 20, 2001
    Date of Patent: February 24, 2004
    Assignee: RTP Pharma Inc.
    Inventors: Gary W. Pace, Awadesh K. Mishra, Robert A. Snow, Indu Parikh, Pol-Henri W. Guivarc'h
  • Patent number: 6696082
    Abstract: A therapeutically active composition of thioretinaco ozonide is provided for providing anticarcinogenic, antineoplastic, antiviral, antiatherogenic, and antiaging benefits having the formula: (NHTR)2CblO3O2ATP wherein: NHTR is N-homocysteine thiolactonyl retinamide; Cbl is cobalamin; O3 is ozone; O2 is oxygen; and ATP is adenosine triphosphate. The N-homocysteine thiolactonyl retinamido cobalamin ozonide oxygen adenosine triphosphate complex is further enhanced by utilizing an ozone-resistant liposomal carrier for protecting the composition against oxidative degradation. The ozone-resistant liposomal carrier is advantageously employed to protect a variety of pharmaceutical compositions from oxidative degradation. The ozone-resistant liposomal carrier can also be sterically stabilized to increase the concentration and efficiency of the delivery of pharmaceutical compositions.
    Type: Grant
    Filed: January 8, 2002
    Date of Patent: February 24, 2004
    Inventor: Kilmer S. McCully
  • Patent number: 6696079
    Abstract: Antitumor compositions are disclosed, as well as methods of preparing the compositions and methods of using them to inhibit tumor growth in mammals. The invention can take advantage of intraliposomal conversion of a platinum complex having the formula where R1 is diaminocycloalkyl, and R2 and R3 each have the formula where R4, R5, and R6 are each independently hydrocarbon moieties having from 1 to about 10 carbon atoms, into a complex having the formula R1—Pt—X2  (II) where X is halogen.
    Type: Grant
    Filed: October 8, 1998
    Date of Patent: February 24, 2004
    Assignee: Board of Regents, The University of Texas System
    Inventors: Roman Perez-Soler, Abdul R. Khokhar
  • Patent number: 6696482
    Abstract: The present invention features formulations, including liquid, semi-solid or solid pharmaceutical formulations, that improve the oral bioavailability of hydrophobic pharmaceutical agents, such as quinazoline-, nitrothiazole-, and indolinone-based compounds. Also featured are formulations for parenteral delivery of such hydrophobic pharmaceutical agents, as well as methods of making and using both types of formulations.
    Type: Grant
    Filed: March 5, 2001
    Date of Patent: February 24, 2004
    Assignee: Sugen, Inc.
    Inventors: Narmada Shenoy, Gregory S. Wagner
  • Patent number: 6696083
    Abstract: The efficacy of vitamins and other nutritional agents in treating and preventing various disease states is improved by administering therapeutically effective levels of these agents on a substantially continuous, 24-hour basis. The concentration of lipid peroxides formed by the autoxidation of lipids, and the concentration of oxygen free radicals, are reduced by continuously administering antioxidant agents. The regeneration of nerve tissue is improved by continuously administering at least one pharmaceutically-acceptable B complex vitamin.
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: February 24, 2004
    Assignee: DrugTech Corporation
    Inventors: George N. Paradissis, R. Saul Levinson, Mitchell I. Kirschner, Marc S. Hermelin
  • Patent number: 6689381
    Abstract: Liposomal encapsulated benzoquinazoline thymidylate synthase inhibitor formulations are provided. The liposomes have improved pharmacokinetics and enhanced efficacy as anti-tumor agents compared to the free drug. The formulations include liposomes comprising at least one phosphatidylcholine, a cholesterol, and a benzoquinazoline thymidylate synthase inhibitor.
    Type: Grant
    Filed: June 6, 2001
    Date of Patent: February 10, 2004
    Assignee: OSI Pharmaceuticals, Inc.
    Inventors: Claudine S. Ashvar, Su-Ming Chiang, David L. Emerson, Ning Hu, Gerard M. Jensen
  • Patent number: 6685967
    Abstract: Systemic delivery of insulin to a mammalian host is accomplished by inhalation of a dry powder of insulin. It has been found that dry insulin powders are rapidly absorbed through the alveolar regions of the lungs.
    Type: Grant
    Filed: June 17, 1996
    Date of Patent: February 3, 2004
    Assignee: Nektar Therapeutics
    Inventors: John S. Patton, Linda Foster, Robert M. Platz
  • Patent number: 6682758
    Abstract: The present invention provides a drug delivery system comprising a water-insoluble drug, a water-miscible organic solvent for the water-insoluble drug, a surfactant, and water, as well as a process for preparing the same. This invention further provides a pharmaceutical composition comprising a pharmaceutically acceptable carrier and such a drug delivery system. In addition, the present invention provides a method of delivering a drug to a host by administering to the host the drug delivery system of the present invention.
    Type: Grant
    Filed: June 21, 2001
    Date of Patent: January 27, 2004
    Assignee: The United States of America as represented by the Department of Health and Human Services
    Inventors: S. Esmail Tabibi, Emmanuel I. Ezennia, B. Rao Vishnuvajjala, Shanker Gupta
  • Patent number: 6676962
    Abstract: A topical patch having non-steroid antirheumatic agent as active substance, consisting of a backing layer inert to the active substance, a self-adhesive, active substance-containing matrix layer based on a polyacrylate adhesive, and a protective film to be removed prior to use, is characterized in that a. the non-steroid antirheumatic agent has a free carboxyl group, b. the active substance-containing matrix of the patch consists of a polyacrylate adhesive cross-linked with multivalent metal ions and having free carboxyl groups, and is free of hydroxyl groups, c. the matrix contains a fatty acid as plasticizer and permeation enhancer, and d. the backing layer consists of a material that is elastic in at least one direction.
    Type: Grant
    Filed: March 9, 2001
    Date of Patent: January 13, 2004
    Assignee: LTS Lohmann Therapie-Systeme
    Inventor: Walter Müller