Patents by Inventor Colin Ratledge

Colin Ratledge 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).

  • Culture of and microorganisms derived therefrom
    Patent number: 7674609
    Abstract: Crypthecodinium cohnii, or microorganisms derived from Crypthecodinium cohnii, are grown in a culture medium including propionic acid. The propionic acid increases the production of one or more of dry cell weight, total lipid and docosahexaenoic acid.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: March 9, 2010
    Assignee: The University of Hull
    Inventors: Colin Ratledge, Alistair James Anderson, Kanagasooriyam Kanagachandran
  • Method of producing an oil including docosahexaenoic acid
    Patent number: 6977166
    Abstract: C. cohnii is cultured in a suitable growth medium with acetic acid/acetate as the main carbon source. The acetate is provided, and replenished, by adding acetic acid to the growth medium in response to an increase in pH resulting from the utilisation of acetic acid/acetate by C. cohnii. The C. cohnii produces relatively high levels of docosahexaenoic acid (DHA). A stationary phase is not essential for satisfactory DHA production.
    Type: Grant
    Filed: July 13, 2000
    Date of Patent: December 20, 2005
    Assignees: The University of Hull, ATV BV
    Inventors: Colin Ratledge, Alistair James Anderson, Kanagasooriyam Kanagachandran, David John Grantham, Janet Christine Stephenson, Martin E. de Swaaf, Lolke Sijtsma
  • Crypthecodinium cohnii biomass cultured to synthesize docosahexaenoic acid
    Publication number: 20050250190
    Abstract: C. cohnii is cultured in a suitable growth medium with acetic acid/acetate as the main carbon source. The acetate is provided, and replenished, by adding acetic acid to the growth medium in response to an increase in pH resulting from the utilisation of acetic acid/acetate by C. cohnii. The C. cohnii produces relatively high levels of docosahexaenoic acid (DHA). A stationary phase is not essential for satisfactory DHA production.
    Type: Application
    Filed: July 19, 2005
    Publication date: November 10, 2005
    Applicants: The University of Hull, ATO BV
    Inventors: Colin Ratledge, Alistair Anderson, Kanagasooriyam Kanagachandran, David Grantham, Janet Stephenson, Martin de Swaaf, Lolke Sijtsma
  • Culture of crypthecodinium cohnll and microoragnisms derived therefrom
    Publication number: 20040072330
    Abstract: Crypthecodinium cohnii, or microorganisms derived from Crypthecodinium cohnii, are grown in a culture medium including propionic acid. The propionic acid increases the production of one or more of dry cell weight, total lipid and docosahexaenoic acid.
    Type: Application
    Filed: August 1, 2003
    Publication date: April 15, 2004
    Inventors: Colin Ratledge, Alistair James Anderson, Kanagasooriyam Kanagachandran
  • Process for the preparation of a mixture of 19 hydroxyelcosatetraenoic acid and 20 hydroxyeicosatetracnoic acid (10 hete and 20 hete)
    Patent number: 6379937
    Abstract: The present invention relates to a novel process for the preparation of mixture of 19 hydroxyeicosatetraenoic acid and 20 hydroxyeicosatetraenoic acid (19 HETE and 20 HETE) by biotransformation of Arachidonic acid or Poly Unsaturated Fatty Acids (PUFA) with yeast as the biotransforming agent.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: April 30, 2002
    Assignee: Council of Scientific and Industrial Research
    Inventors: Asmita Ashutosh Prabhune, Colin Ratledge