Patents Examined by Jyothsna Ulnkat
  • Heterocycylic-substituted quinoline-carboxylic acids
    Patent number: 5037834
    Abstract: 1-Substituted-6-fluoro-7-heterocyclic-1,4-dihydroquino-1-(or dihydronaphthyridin)-4-one carboxylic acids have antibacterial properties. The 7-heterocyclic group is a bicyclic group, one of the rings of which is saturated and the other ring of which is unsaturated.
    Type: Grant
    Filed: August 1, 1989
    Date of Patent: August 6, 1991
    Assignee: Pfizer Inc.
    Inventors: Katherine E. Brighty, John A. Lowe, III, Paul R. McGuirk