Patents Represented by Law Firm Quigg & Oberlin
  • Patent number: D247523
    Type: Grant
    Filed: December 2, 1976
    Date of Patent: March 14, 1978
    Assignee: Phillips Petroleum Company
    Inventors: James C. Carroll, Lewis T. Johnson
  • Patent number: D247648
    Type: Grant
    Filed: July 6, 1976
    Date of Patent: March 28, 1978
    Assignee: Phillips Petroleum Company
    Inventors: James C. Carroll, Lewis T. Johnson
  • Patent number: D247649
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: March 28, 1978
    Assignee: Phillips Petroleum Company
    Inventors: James C. Carroll, Lewis T. Johnson
  • Patent number: D247650
    Type: Grant
    Filed: August 18, 1976
    Date of Patent: March 28, 1978
    Assignee: Phillips Petroleum Company
    Inventors: James C. Carroll, Lewis T. Johnson
  • Patent number: D252961
    Type: Grant
    Filed: August 15, 1977
    Date of Patent: September 25, 1979
    Assignee: Phillips Petroleum Company
    Inventors: James C. Carroll, Lewis T. Johnson