Patents by Inventor Wilhelmus Van Der Kleij

Wilhelmus Van Der Kleij 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).

  • Composition and methods comprising a xylanase enzyme variant
    Patent number: 10253304
    Abstract: The present invention provides hemicellulytic enzyme variants. Specifically, the present invention provides xylanase variants having one or more modifications as compared to a parent xylanase enzyme resulting in at least one improved property. In addition, the present invention provides compositions comprising a xylanase variant of the invention. The present invention also provides methods of degrading hemicellulotic material, including arabino-xylan using compositions comprising a xylanase variant of the invention.
    Type: Grant
    Filed: January 30, 2015
    Date of Patent: April 9, 2019
    Assignee: DUPONT NUTRITION BIOSIENCES APS
    Inventors: Rikke Hoeegh Lorentsen, Susan Arent Lund, Jacob F. Cramer, Igor Nikolaev, Wilhelmus Van Der Kleij
  • Methods for site-directed mutagenesis and targeted randomization
    Publication number: 20060252155
    Abstract: The present invention provides methods and compositions for the construction and direct transformation of site-saturation libraries into Bacillus. This method avoids the need for the use of intermediate hosts, such as E. coli for the development of Bacillus strains suitable for the production of proteins.
    Type: Application
    Filed: January 16, 2004
    Publication date: November 9, 2006
    Inventors: Chris Leeflang, Wilhelmus Van Der Kleij