Patents by Inventor Norman Winskill

Norman Winskill 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).

  • Fermentation process and microorganism for producing aconitic acid
    Patent number: 4740464
    Abstract: Aconitic acid, an unsaturated tricarboxylic acid, is obtained by fermentation of an aconitic acid-accumulating strain of Aspergillus terreus or Aspergillus itaconicus, under aerobic conditions, in a carbohydrate-containing medium, followed by isolation of the aconitic acid or a salt thereof. A preferred aconitic acid-accumulating microorganism is the strain of Aspergillus terreus which is on deposit in the Culture Collection of the Commonewealth Mycological Institute at Kew, Surrey, United Kingdom, under Accession No. CMI CC 281924.
    Type: Grant
    Filed: November 30, 1984
    Date of Patent: April 26, 1988
    Assignee: Pfizer Inc.
    Inventors: Kelvin S. Holdom, Norman Winskill
  • Microbiological process for the preparation of 1-carvone
    Patent number: 4495284
    Abstract: A process for the preparation of 1-carvone (spearmint flavor) comprises cultivating a carvone producing microorganism of the genus Pseudomonas in an aqueous nutrient media in the presence of 1-.alpha.- or 1-.beta.-pinene.
    Type: Grant
    Filed: November 22, 1982
    Date of Patent: January 22, 1985
    Assignee: Pfizer Inc.
    Inventors: Peter M. Rhodes, Norman Winskill