Patents by Inventor Wen Chin Lou

Wen Chin Lou 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).

  • Hydroxypropyl cellulose encapsulation material
    Publication number: 20030077378
    Abstract: Hydroxypropyl cellulose is employed to encapsulate flavor or fragrance materials that could be employed in diverse applications such as food products and laundry applications.
    Type: Application
    Filed: October 22, 2001
    Publication date: April 24, 2003
    Inventors: Wen Chin Lou, Lewis Michael Popplewell
  • Microparticles which controllably release olfactorily active substances, methods of using same and processes for preparing same
    Patent number: 6368633
    Abstract: Described are flavor composition, flavor component, perfume composition and perfume component-containing microparticles which are particulate matrices composed of: (a) an olfactorily active component (e.g., perfume component); (b) silica; and (c) a saccharide composition which is a mixture of mannitol and maltose. The microparticles are useful in augmenting, enhancing and/or imparting aroma and/or taste (over relatively long periods of time in a controllably releasable manner) to perfume compositions, perfumed articles (e.g., deodorancy and antiperspirant sticks), foodstuffs, chewing gums, beverages and the like. Also described is a process for preparing the above-mentioned microparticles using, in sequence, (1) adsorption of the olfactorily active material onto silica followed by (2) a blending/extrusion step followed by (3) at least one particularization step.
    Type: Grant
    Filed: May 14, 2001
    Date of Patent: April 9, 2002
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Wen Chin Lou, Keith J. McDermott, Shmuel David Shefer, Adi Shefer, John M. Teffenhart, Chee-Teck Tan, Jerome I. Lindauer, Leslie C. Smith
  • Microparticles which controllably release olfactorily active substances, methods of using same and processes for preparing same
    Patent number: 6235274
    Abstract: Described are flavor composition, flavor component, perfume composition and perfume component-containing microparticles which are particulate matrices composed of: (a) an olfactorily active component (e.g., perfume component); (b) silica; and (c) a saccharide composition which is a mixture of mannitol and maltose. The microparticles are useful in augmenting, enhancing and/or imparting aroma and/or taste (over relatively long periods of time in a controllably releasable manner) to perfume compositions, perfumed articles (e.g., deodorancy and antiperspirant sticks), foodstuffs, chewing gums, beverages and the like. Also described is a process for preparing the above-mentioned microparticles using, in sequence, (1) adsorption of the olfactorily active material onto silica followed by (2) a blending/extrusion step followed by (3) at least one particularization step.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: May 22, 2001
    Assignee: International Flavors & Fragrances Inc.
    Inventors: Wen Chin Lou, Keith J. McDermott, Shmuel David Shefer, Adi Shefer, John M. Teffenhart, Chee-Teck Tan, Jerome I. Lindauer, Leslie C. Smith