Patents by Inventor Elzbieta Watson

Elzbieta Watson 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).

  • 3-Heterocyclicthio-7-.alpha.-carboxy 2-aryl acetamido cephalosporanic acid
    Patent number: 4160086
    Abstract: A class of .alpha.-carboxy-3-heterocyclicthio cephems have an unusually high level of antibacterial activity against a wide variety of Gram-positive and Gram-negative organisms.
    Type: Grant
    Filed: April 8, 1975
    Date of Patent: July 3, 1979
    Assignee: Beecham Group Limited
    Inventors: George Burton, Elzbieta Watson
  • Cephalosporin compounds
    Patent number: 3993758
    Abstract: A series of .alpha.-carboxy esters of cephalosporins having a 3-heterocyclicthio substituent which has been found active against many species of Gram-positive and Gram-negative organisms.
    Type: Grant
    Filed: January 15, 1975
    Date of Patent: November 23, 1976
    Assignee: Beecham Group Limited
    Inventors: George Burton, Elzbieta Watson