Patents by Inventor Jakob Roelf Woltjes

Jakob Roelf Woltjes 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).

  • Reversible gel formation
    Patent number: 6890579
    Abstract: The invention relates to a gelling agent for production of a reversible gel. The gelling agent is a degraded root or tuber starch comprising at least 95 wt. % of amylopectin, based on dry substance of the starch. The gelling agent according to the invention is particularly suitable for use in food products.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: May 10, 2005
    Assignee: Cooperatieve Verkoop-En Productievereniging Van Aardappelmeel en Derivaten Avebe B.A.
    Inventors: Pieter Lykle Buwalda, Heine Roelf Meima, Jakob Roelf Woltjes
  • Composition based on cross-linked starch and depolymerized starch suitable as gelatine replacement
    Patent number: 6749880
    Abstract: The invention relates to hydrocoloids that are used as thickening, binding, gelling or stabilising agents used in the food industry. The invention provides a starch composition, comprising a first fraction comprising cross-linked starch and at least a second fraction comprising copolymerised starch. Said composition is suitable for example to serve as gelatine replacement in foodstuff of varied nature, and is preferably suitable for use in foodstuff such as confectionery.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: June 15, 2004
    Assignee: Cooperative Verkoop-en Productivevereniging van Aaardappelmeel en Derivaten AVEBE B.A.
    Inventors: Jakob Roelf Woltjes, Heine Roelf Meima, Pieter Lykle Buwalda
  • Reversible gel formation
    Publication number: 20030157232
    Abstract: The invention relates to a gelling agent for production of a reversible gel. The gelling agent is a degraded root or tuber starch comprising at least 95 wt. % of amnylopectin, based on dry substance of the starch. The getting agent according to the invention is particularly suitable for use in food products.
    Type: Application
    Filed: April 16, 2003
    Publication date: August 21, 2003
    Inventors: Pieter Lykle Buwalda, Heine Roelf Meina, Jakob Roelf Woltjes