Patents by Inventor Lolke Sijtsma

Lolke Sijtsma 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).

  • 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
  • DNA sequences encoding antifungal proteins
    Publication number: 20030226169
    Abstract: The present invention provides DNA sequences encoding antifungal peptides which comprise at least six amino acid residues identical to a run of amino acid residues found between position 21 and position 51 of the Rs-AFP2 antifungal protein sequence (SEQ ID NO: 35) or a substantially homologous protein.
    Type: Application
    Filed: March 13, 2003
    Publication date: December 4, 2003
    Inventors: Aart Van Amerongen, Franky Fant, Frans Alois Melania Borremans, Genoveva Wivina De Samblanx, Lolke Sijtsma, Robbert Hans Meloen, Wouter Cornelis Puijk, Wilhelmus Martinus Maria Schaaper, Willem Frans Broekaert, Wilhelmus Martinus Jozef Van Gelder, Sarah Bronwen Rees
  • Antifungal peptides and composition thereof
    Patent number: 6605698
    Abstract: Antifungal peptides which comprise at least six amino acid residues identical to a run of amino acid residues found between position 21 and position 51 of the Rs-AFP2 antifungal protein sequence or of substantially homologous protein sequences. The peptides are useful for combating fungal diseases in agricultural, pharmaceutical or preservative applications.
    Type: Grant
    Filed: August 7, 1998
    Date of Patent: August 12, 2003
    Assignee: Syngenta Limited
    Inventors: Aart Van Amerongen, Franky Fant, Frans Alois Borremans, Genoveva Wivina De Samblanx, Lolke Sijtsma, Robbert Hans Meloen, Wouter Cornelis Puijk, Wilhelmus Martinus Maria Schaaper, Willem Frans Broekaert, Wilhelmus Martinus Josef van Gelder, Sarah Bronwen Rees