Patents by Inventor David J. Keeling

David J. Keeling has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Substituted quinoline derivatives
    Patent number: 5420135
    Abstract: Substituted quinoline derivatives are described as inhibitors bone resorption with in particular, the compound 1-(2-methylphenyl)imidazo[4,5-c]quinoline hydrochloride.
    Type: Grant
    Filed: December 10, 1990
    Date of Patent: May 30, 1995
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Thomas H. Brown, Robert J. Ife, Colin A. Leach, David J. Keeling
  • Substituted quinazoline derivatives for use in gastrointestinal diseases
    Patent number: 5064833
    Abstract: 2,4-diaminoquinazoline compounds are inhibitors of the H.sup.+ K.sup.+ ATPase enzyme and useful for the treatment of diseases of the stomach based on excessive gastric acid secretion. A compound of the invention is 2-[2-methyl-4-fluorophenyl)amino]-4-(N-methylphenylamino)quinazoline.
    Type: Grant
    Filed: May 8, 1990
    Date of Patent: November 12, 1991
    Assignee: Smithkline Beecham Intercredit B.V.
    Inventors: Robert J. Ife, Thomas H. Brown, Colin A. Leach, David J. Keeling