Patents by Inventor David Frederick Cleaver

David Frederick Cleaver 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).

  • Antimicrobial compositions
    Patent number: 4038388
    Abstract: The stability of tetracycline is improved by compounding it with 8 - hydroxyquinoline or a chlorinated and/or alkyl derivative thereof. In the compositions, which are particularly suitable for topical application, the tetracycline and the quinoline derivative are shown to behave synergistically against certain micro-organisms.
    Type: Grant
    Filed: February 20, 1976
    Date of Patent: July 26, 1977
    Assignee: Paterson Zochonis & Company Limited
    Inventor: David Frederick Cleaver
  • Antimicrobial compositions
    Patent number: 3944668
    Abstract: The stability of tetracycline is improved by compounding it with 8 - hydroxyquinoline or a chlorinated and/or alkyl derivative thereof. In the compositions, which are particularly suitable for topical application, the tetracycline and the quinoline derivative are shown to behave synergistically against certain micro-organisms.
    Type: Grant
    Filed: March 29, 1974
    Date of Patent: March 16, 1976
    Assignee: Paterson Zochonis & Company, Limited
    Inventor: David Frederick Cleaver