Patents Represented by Attorney Dimitrios T. Drivas

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  • Pharmaceutical composition
    Patent number: 5686428
    Abstract: Combinations of 3'-azido-3'deoxythymidine and phsphonoformate have been found to produce a synergistic inhibitory effect against human immunodeficiency virus (HIV).
    Type: Grant
    Filed: February 4, 1994
    Date of Patent: November 11, 1997
    Assignee: Aktiebolaget Astra
    Inventors: Bertil F. H. Eriksson, Raymond F. Schinazi
  • (Iodo-urea and iodo-isocyano) dioxepane trioxane copolymers
    Patent number: 5071952
    Abstract: Iodoisocyano, iodourea and oxazole modified 1,3 dioxep-5-ene ring monomers are synthesized and used in copolymerization reactions with trioxane to produce acetal copolymers with backbone functional groups. The invention also concerns processes for the production of acetal copolymers containing iodourea and oxazole functional groups from acetal copolymers with backbone double bonds.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: December 10, 1991
    Assignee: Hoechst Celanese Corporation
    Inventors: Nan-Loh Yang, Andrew Auerbach, James L. Paul, Rose Pesce
  • Acetal copolymers with backbone bromo functional groups
    Patent number: 4906728
    Abstract: The invention concerns a method for producing an acetal copolymer containing backbone bromo-functional groups comprising copolymerizing trioxane with 5,6,-dibromo-1,3-dioxepene. The invention also concerns methods of modifying acetal copolymers containing bromo-functional groups and the copolymers produced by the methods of the invention.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: March 6, 1990
    Assignee: Hoechst Celanese Corp.
    Inventors: Nan-Loh Yang, Andrew Auerbach, James L. Paul, Rose Pesce, Shian S. Wang
  • Acetal copolymers with backbone double bonds and graft copolymers thereof
    Patent number: 4900783
    Abstract: Acetal copolymers of trioxane and 1,3-dioxep-5-ene having a high degree of crystallinity and specific mole percent incorporations of 1,3-dioxep-5-ene are synthesized.The invention also provides a process for producing highly crystalline acetal copolymers by copolymerizing triozane and 1,3-dioxep-5-ene and precipitating the copolymer product from solution.The copolymers show much improved stability against halogen degradation.
    Type: Grant
    Filed: April 13, 1988
    Date of Patent: February 13, 1990
    Assignee: Hoechst Celanese Corporation
    Inventors: Nan-Loh Yang, Andrew Auerbach, James L. Paul, Rose Pesce, Shian S. Wang
  • Switching mechanism for electrical devices
    Patent number: 4899368
    Abstract: The present invention concerns a switching mechanism for electrical devices where the operations of each device are controlled by turning the page-like switches of the mechanism in a manner similar to turning the pages of a book. A preferred embodiment of the invention concerns an integral telephone and telephone answering machine.
    Type: Grant
    Filed: January 22, 1988
    Date of Patent: February 6, 1990
    Inventors: Lisa Krohn, Tucker Viemeister
  • Method for immunization against and treatment of infection by ectoparasites and endoparasites
    Patent number: 4891219
    Abstract: This invention relates to a method for the active or passive immunization of a vertebrate against ectoparasites and endoparasites, and a method of treating a vertebrate host infected by ectoparasites or endoparasites, comprising administering to the vertebrate an immunogen comprising one or more endocrine products of ectoparasites and endoparasites, coupled with an immunogenic carrier, or administering to the vertebrate, monoclonal antibodies capable of binding to the native form of the endocrine product.
    Type: Grant
    Filed: September 14, 1987
    Date of Patent: January 2, 1990
    Assignee: Aphton Corporation
    Inventors: Stephen L. Karr, Jr., Elizer Benjamini, Robert J. Scibienski, Stephen Grimes
  • Method for immunization against and treatment of infection by ectoparasites and endoparasites
    Patent number: 4814170
    Abstract: This invention relates to a method for the active or passive immunization of a vertebrate against ectoparasites and endoparasites, and a method of treating a vertebrate host infected by ectoparasites or endoparasites, comprising administering to the vertebrate an immunogen comprising one or more endocrine products of ectoparasites and endoparasites, coupled with an immunogenic carrier, or administering to the vertebrate, monoclonal antibodies formed to said immunogen.
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: March 21, 1989
    Assignee: Aphton Corporation
    Inventor: Stephen L. Karr, Jr.
  • Method for contraception by immunization against the zona pellucida
    Patent number: 4795634
    Abstract: This invention relates to a method for contraception comprising the active immunization of a female mammal against zona pellucida using a composition comprising an effective amount of anti-idiotypic antibodies formed against anti-zona pellucida antibodies, which anti-idiotypic antibodies express internal images of zona pellucida antigenic determinants capable of eliciting a contraceptive response.
    Type: Grant
    Filed: March 14, 1986
    Date of Patent: January 3, 1989
    Assignee: Aphton Corporation
    Inventors: Stephen Grimes, Elizer Benjamini, Philip Gevas
  • Recreational semi-displacement hull watercraft
    Patent number: 4660490
    Abstract: A watercraft comprising an efficient, directionally stable and maneuverable hull construction useful for recreation and water sports. In a preferred embodiment the hull has an outwardly projecting flange longitudinally positioned along the periphery of the hull substantially about the waterline, whereby the flange increases the directional stability and maneuverability of the hull and keeps the wetted surface area of the hull to a minimum.
    Type: Grant
    Filed: January 30, 1986
    Date of Patent: April 28, 1987
    Assignee: Olympia Sports Products, Inc.
    Inventor: Daniel J. S. Broadhurst
  • Combination telephone answering machine and telephone set or similar article
    Patent number: D302690
    Type: Grant
    Filed: December 22, 1987
    Date of Patent: August 8, 1989
    Inventors: Lisa Krohn, Tucker Viemeister