Patents Assigned to Smith Kline & French Laboratories, Inc.
  • Salicylamides and compositions thereof
    Patent number: 3976777
    Abstract: 3-tert.Butyl-5-nitro-N-pyrid-2'-yl salicylamides which have antiparasitic activity, compositions thereof and methods of controlling parasites in animals infected therewith.
    Type: Grant
    Filed: July 16, 1975
    Date of Patent: August 24, 1976
    Assignee: Smith Kline & French Laboratories, Inc.
    Inventors: Richard Martin Lee, George Sidney Sach
  • H2 histamine receptor inhibitors
    Patent number: 3932644
    Abstract: Heterocyclic compounds which are inhibitors of histamine activity, in particular, inhibitors of H-2 histamine receptors. A specific compound of this invention is 2-[2-(4-methyl-5-imidazolylmethylthio)ethylamino]-4-pyrimidone.
    Type: Grant
    Filed: April 24, 1974
    Date of Patent: January 13, 1976
    Assignee: Smith Kline & French Laboratories, Inc.
    Inventors: Graham John Durant, John Colin Emmett, Charon Robin Ganellin
  • Sulphoxides
    Patent number: 3932443
    Abstract: The compounds are sulphoxides of heterocyclicthioalkylthioureas, ureas and guanidines which are useful to produce inhibition of histamine H-2 receptors.
    Type: Grant
    Filed: January 24, 1974
    Date of Patent: January 13, 1976
    Assignee: Smith Kline & French Laboratories, Inc.
    Inventor: George Raymond White
  • Pyridyl substituted aminoalkyl-thioureas and ureas
    Patent number: 3932427
    Abstract: The compounds are pyridyl substituted aminoalkylthioureas and ureas which are inhibitors of H-2 histamine receptors. A compound of this invention is N-methyl-N'-[2-(2-pyridylmethylamino)ethyl]thiourea.
    Type: Grant
    Filed: March 13, 1974
    Date of Patent: January 13, 1976
    Assignee: Smith Kline & French Laboratories, Inc.
    Inventors: Graham John Durant, John Colin Emmett, Charon Robin Ganellin
  • 6-(3-Substituted amino-2-hydroxypropoxyaryl)-4,5-dihydro-3(2H)-pyridazinones
    Patent number: 3931177
    Abstract: The compounds are 6-(3-substituted amino-2-hydroxypropoxyaryl)-4,5-dihydro-3(2H)-pyridazinones which are .beta.-adrenergic blocking agents.
    Type: Grant
    Filed: December 12, 1974
    Date of Patent: January 6, 1976
    Assignee: Smith Kline & French Laboratories, Inc.
    Inventors: William John Coates, Anthony Maitland Roe, Robert Antony Slater