Patents by Inventor Derek A. Rawlings

Derek A. Rawlings 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).

  • Phenylpyrimidones
    Patent number: 5118686
    Abstract: This invention relates to phenylpyrimidone derivatives which have bronchodilator activity. A compound of the invention is 4-cyano-6-hydroxy-2-(2-propoxyphenyl)pyrimidine.
    Type: Grant
    Filed: April 25, 1990
    Date of Patent: June 2, 1992
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: William J. Coates, Derek A. Rawlings
  • Pyrimidone derivatives as bronchodilators
    Patent number: 5075310
    Abstract: This invention relates to fused pyrimidine derivatives which have bronchodilator activity. A compound of this invention is 2-(2-propoxyphenyl)thieno[2,3-d]pyrimidin-4(3H)-one.
    Type: Grant
    Filed: June 23, 1989
    Date of Patent: December 24, 1991
    Assignee: Smith Kline & French Laboratories, Ltd.
    Inventors: William J. Coates, Derek A. Rawlings
  • Chemical compounds
    Patent number: 5047404
    Abstract: This invention relates to fused pyrimidine derivatives which have bronchodilator and anti-allergic activities. A compound of the invention is 2-(2-propoxyphenyl)pyrido[2,3-d]pyrimid-4(3H)-one.
    Type: Grant
    Filed: June 13, 1989
    Date of Patent: September 10, 1991
    Assignee: Smith Kline & French Laboratories, Ltd.
    Inventors: William J. Coates, Sean T. Flynn, Derek A. Rawlings
  • N-Substituted pyridinones having histamine H.sub.2 -antagonist activity
    Patent number: 4540699
    Abstract: This invention relates to N-substituted pyridinone compounds which have histamine H.sub.2 -antagonist activity. A specific compound of this invention is 2-[2-(5-methyl-4-imidazolylmethylthio)ethylamino]-5-(1-methyl-2-oxopyridin -4-ylmethyl)pyrimidin-4-one.
    Type: Grant
    Filed: November 29, 1983
    Date of Patent: September 10, 1985
    Assignee: Smith Kline & French Laboratories Limited
    Inventors: Thomas H. Brown, Derek A. Rawlings