Patents Examined by Leon R. Horne
  • Patent number: 4910020
    Abstract: A transdermal medication device for applying medication on the skin of the user comprising upper and lower layers having cooperating filaments for detachably securing the upper layer to the lower layer. The lower layer has an opening therethrough, the upper layer carrying a medication reservoir which seats in the opening. In one form of the invention, the device is a patch attached by pressure-sensitive adhesive to the skin. In another form of the invention, the lower layer is a band for attaching the device about the chest, waist, arm or leg of the user.
    Type: Grant
    Filed: October 21, 1988
    Date of Patent: March 20, 1990
    Assignee: Macrochem Corporation
    Inventor: Carlos Samour
  • Patent number: 4910023
    Abstract: According to this invention various hygroscopic malflavored drugs can be proceeded by a unique wet granulation process wherein a slurry of the drug in water is dried in combination with colloidal silicon dioxide and, in a particularly preferred embodiment microcrystalline cellulose with the colloidal silicon dioxide absorbing onto the drug particles.The result is a protective coating of silicon dioxide which masks unpleasant taste and odor and also reduces the adhesive of the granulation onto the punch faces used in the manufacture of the granules. By adsorbing silicon dioxide on the particulate surface of the malflavored hygroscopic drug, the drug becomes not only easier to handle but the unpleasant tastes and/or odors are masked making the fiinal product more susceptible to proper patient compliance.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: March 20, 1990
    Assignee: Warner-Lambert Company
    Inventors: John E. Botzolakis, Michael R. Harris, Russell U. Nesbitt
  • Patent number: 4906475
    Abstract: The present invention is directed to a transdermal delivery system for an active substance. The active substance is estrogen or its derivatives and preferably is 17-beta-estradiol. The system comprises an impermeable backing layer and a matrix affixed thereto. The matrix comprises, on a weight percentage basis, from about 60 to about 95% of an adhesive polymer, from about 5 to about 20% of a solvent, from about 0.2 to about 4% of a skin penetration enhancer, and from about 0.5 to about 5% of the active substance. The system is free of any discrete permeable, polymeric, diffusion-controlling membrane.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: March 6, 1990
    Assignee: Paco Pharmaceutical Services
    Inventor: Benjamin K. Kim
  • Patent number: 4900559
    Abstract: A stabilized enteric coated aspirin granule product prepared by commingling the enteric coated aspirin granules with glutamic acid hydrochloride.
    Type: Grant
    Filed: August 29, 1988
    Date of Patent: February 13, 1990
    Assignee: Briston-Myers Company
    Inventor: Mahesh K. Patell
  • Patent number: 4900554
    Abstract: An adhesive device for application to body tissue having an adhesive layer and a backing layer positioned over one side of the adhesive layer. The adhesive layer includes one or more acrylic acid polymers having adhesive properties upon dissolution or swelling in water, and at least one water insoluble cellulose derivative. The backing layer is water insoluble or sparingly water soluble.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: February 13, 1990
    Assignee: Teikoku Seiyaku Co., Ltd.
    Inventors: Norio Yanagibashi, Setsuo Iwasaki, Takafumi Mizobuchi, Ryoji Konishi, Tatsuya Konishi, Takahiko Wato
  • Patent number: 4898732
    Abstract: A method of inhibiting tumor growth in a patient which comprises administering to the patient an effective dose of a pharmaceutical antagonist of the renin-angiotensin system of the patient.
    Type: Grant
    Filed: May 4, 1988
    Date of Patent: February 6, 1990
    Assignee: The Clinipad Corporation
    Inventor: Leonardo A. Fernandez
  • Patent number: 4895726
    Abstract: The present invention relates to a novel dosage form of fenofibrate containing fenofibrate and a solid surfactant which have been co-micronized.It also relates to the method for the preparation of this dosage form and its use for improving the bioavailabity in vivo.
    Type: Grant
    Filed: January 19, 1989
    Date of Patent: January 23, 1990
    Assignee: Fournier Innovation et Synergie
    Inventors: Bernard Curtet, Eric Teillaud, Philippe Reginault
  • Patent number: 4894240
    Abstract: A diltiazem pellet formulation for oral administration comprises a core of diltiazem or a pharmaceutically acceptable salt thereof in association with an organic acid, and a multi-layer membrane surrounding the core and containing a major proportion of a pharmaceutically acceptable film-forming, water insoluble synthetic polymer and a minor proportion of a pharmaceutically acceptable film-forming, water soluble synthetic polymer. The number of layers in the membrane and the ratio of the water soluble to water insoluble polymer being effective to permit release of the diltiazem from the pellet at a rate allowing controlled absorption thereof over a twenty four hour period following oral administration.
    Type: Grant
    Filed: November 16, 1987
    Date of Patent: January 16, 1990
    Assignee: Elan Corporation plc
    Inventors: Edward J. Geoghegan, Seamus Mulligan, Donald E. Panoz
  • Patent number: 4892739
    Abstract: An osmotic dispensing delivery system suitable for oral administration, containing a pharmaceutically acceptable active agent for the controlled continuous release of about 50 to about 90 percent by weight of said active agent into the gastrointestinal tract at a rate of about 5 to about 12 percent by weight of said agent per hour consisting essentially of:(a) a shaped solid core containing an osmotically active composition comprising an effective amount of a pharmaceutically acceptable active agent, alone or in combination with a pharmaceutically acceptable binder, an osmotically active driving agent, or tabletting lubricant, or mixtures thereof;(b) said core being substantially evenly coated with a discrete layer of a water-soluble, or water-dispersible, and water permeable substantially non-osmotically active solid polymeric binder, said binder layer being present in an amount between about 0.
    Type: Grant
    Filed: April 25, 1988
    Date of Patent: January 9, 1990
    Assignee: Ciba-Geigy Corporation
    Inventors: Shailesh B. Shah, Arun D. Koparkar
  • Patent number: 4892736
    Abstract: Therapeutic agent delivery devices and methods for using them in treatment of dental disease are disclosed. In the treatment of periodontal disease, a therapeutic agent such as tetracycline mixed in a polymeric matrix such as ethylene vinyl acetate copolymer is packed into the area to be treated and kept in place for a suitable time, during which the therapeutic agent diffuses out of the polymeric matrix, providing continuous therapy for the treatment site.
    Type: Grant
    Filed: June 3, 1988
    Date of Patent: January 9, 1990
    Assignee: The Forsyth Dental Infirmary for Children
    Inventor: J. Max Goodson
  • Patent number: 4891229
    Abstract: Soft gelatin capsules with a gelatin shell, at least one plasticizer and a capsule filling that contains at least one pharmacologically-active substance and a solvent containing at least 50% by weight of a mixture of polyethylene glycol ethers of tetrahydrofurfuryl alcohol having the formula I ##STR1## where n=1 to 6. The capsules must be dried for 5 to 10 days in manufacture.
    Type: Grant
    Filed: October 14, 1988
    Date of Patent: January 2, 1990
    Inventors: Werner Brox, Wilfried Gabler
  • Patent number: 4889721
    Abstract: Sustained-release percutaneous preparations which have at least two adhesive layers and in which a drug is contained in the layer farthest from the skin and a solid powder is dispersed in an adhesive layer other than the layer farthest from the skin provide slow release of the drug. By varying the kind and concentration of the solid powder, the rate of release of the drug from the preparations can be controlled.
    Type: Grant
    Filed: July 15, 1988
    Date of Patent: December 26, 1989
    Assignee: Fujisawa Pharmaceutical Co., Ltd.
    Inventors: Yoshio Ueda, Sotoo Asakura, Yoshio Murakami, Toshiomi Nakate
  • Patent number: 4883669
    Abstract: This invention relates to a novel transdermal absorption dosage unit comprising a backing layer, an adjoining layer of solid polymer matrix in which estradiol or another steroidal pharmaceutical having estrogenic activity is microdispersed; and a biologically acceptable adhesive means by which the dosage unit adheres to the skin of the subject being administered said estradiol or another said steroidal pharmaceutical and adapted to permit transdermal absorption of said estradiol or another said steroidal pharmaceutical. Additionally, the invention relates to improved estradiol or other estrogenic steroid maintenance therapy.
    Type: Grant
    Filed: May 30, 1986
    Date of Patent: November 28, 1989
    Assignee: Rutgers, The State University of New Jersey
    Inventors: Yie W. Chien, Chia-Shun Lee, Kirti H. Valia, Te-Yen Chien
  • Patent number: 4882163
    Abstract: Transdermal therapeutic system for administration of moxonidine, containing at least one higher n-alkane-carboxylic acid with at least 12 C atoms as a permeation accelerator.
    Type: Grant
    Filed: August 1, 1988
    Date of Patent: November 21, 1989
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Gunter Guse, Michael Horstmann, Axel Erler
  • Patent number: 4880633
    Abstract: A multilaminate transdermal drug delivery system containing only dissolved drug in the drug reservoir is described. The delivery system comprises a backing layer, a reservoir layer and a membrane layer, wherein the drug in the reservoir is completely dissolved and the control of delivery is effected by the joint action of reservoir and membrane.
    Type: Grant
    Filed: July 7, 1988
    Date of Patent: November 14, 1989
    Assignee: Merck & Co., Inc.
    Inventors: Alice E. Loper, Anup K. Majumdar
  • Patent number: 4879119
    Abstract: A patch having good transdermal property which utilizes a suppository base e.g. triglyceride of a vegetable saturated fatty acid having 12 to 18 carbon atoms together with a penetration enhancer.
    Type: Grant
    Filed: August 26, 1988
    Date of Patent: November 7, 1989
    Assignee: Yamanouchi Pharmaceutical Co., Ltd.
    Inventors: Yutaka Konno, Hiroitsu Kawata, Masayoshi Aruga, Takashi Sonobe, Mitsuo Mitomi
  • Patent number: 4876094
    Abstract: A liquid dual coated dosage formulation sustained release pharmaceutic having substantial shelf life prior to ingestion is disclosed. A dual coating is applied over controlled release cores to form dosage forms and the coatings comprise fats melting at less than approximately 101.degree. F. overcoated with cellulose acetate phthalate or zein. The dual coated dosage forms are dispersed in a sugar based acidic liquid carrier such as high fructose corn syrup and display a shelf life of up to approximately at least 45 days while still retaining their release profiles following ingestion. Cellulose acetate phthalate coated dosage form cores can in addition be dispersed in aqueous liquids of pH <5.
    Type: Grant
    Filed: July 14, 1986
    Date of Patent: October 24, 1989
    Assignee: Battelle Development Corporation
    Inventors: Ben F. Benton, David L. Gardner
  • Patent number: 4871544
    Abstract: A dispensing device is disclosed for delivering a beneficial agent. The device comprises (1) a housing defining an internal space, (2) an expandable composition comprising a dense member in the space, (3) a composition comprising a beneficial agent and a non-toxic heat responsive carrier in the space, and (4) a passageway in the housing for delivering the beneficial agent from the dispensing device.
    Type: Grant
    Filed: November 27, 1987
    Date of Patent: October 3, 1989
    Assignee: ALZA Corporation
    Inventor: James B. Eckenhoff
  • Patent number: 4867969
    Abstract: A composition of matter comprising a drug, a neutral hydrogel and an ionic hydrogel. The composition can be administered from a delivery system to a biological receptor over time.
    Type: Grant
    Filed: February 8, 1988
    Date of Patent: September 19, 1989
    Assignee: ALZA Corporation
    Inventors: Paul R. Magruder, Patrick S. Wong, Felix Theeuwes, George V. Guittard
  • Patent number: 4867942
    Abstract: Process for the preparation of an effervescent granular material containing at least one solid, crystalline, edible organic acid, particularly citric acid and at least one alkali metal or alkaline earth metal carbonate splitting off CO.sub.
    Type: Grant
    Filed: September 27, 1988
    Date of Patent: September 19, 1989
    Inventors: Gerhard Gergely, Irmgard Gergely, Stefan M. Gergely, Thomas Gergely