Patents by Inventor Shirley Yang

Shirley Yang 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).

  • Polymerizable compounds and use thereof
    Publication number: 20020123588
    Abstract: Polymerizable ester surfactant, or a salt thereof, having the formula:
    Type: Application
    Filed: March 29, 2001
    Publication date: September 5, 2002
    Inventors: Herve Adam, Hui Shirley Yang, Jonathan D. Kiplinger, Eugene J. Anderson, Ning Chen, Robert Lee Reierson
  • Method for scavenging moisture in polyisocyanates and formulations thereof
    Patent number: 6291577
    Abstract: Scavenging moisture from a polyisocyanate useful for preparing thermosetting polyurethane coatings therefrom is accomplished by admixing with the polyisocyanate a t-butylated hydroxytoluene and an alkyl ester of toluenesulfonic acid in which the alkyl ester comprises at least 90% para ester, thereby improving the shelf life of the polyisocyanate.
    Type: Grant
    Filed: April 11, 2000
    Date of Patent: September 18, 2001
    Assignee: Rhodia Inc.
    Inventors: Hui Shirley Yang, Paul Ling-Kong Hung
  • Composition for peroral therapy of cognition impairment and a process thereof
    Patent number: 5650174
    Abstract: A solid composition for peroral therapy of cognition impairment is formulated to stabilize the acid labile drug, CI-979 HCl, by layering a mixture of thereof with a binder on mini-sugar spheres, and finally covering the structure with a protective coating.
    Type: Grant
    Filed: March 7, 1995
    Date of Patent: July 22, 1997
    Assignee: Warner-Lambert Company
    Inventors: Nouman Muhammad, Gary D'Alonzo, Shirley Yang, Jay Weiss
  • Controlled release tacrine drug delivery systems and methods for preparing same
    Patent number: 5576022
    Abstract: The present invention pertains to controlled release tacrine drug delivery systems comprising an immediate release composition and a sustained release composition wherein (1) the immediate release composition comprises in percentages by weight of the immediate release composition: (A) immediate release pellets comprising: (a) nonpareil seeds in an amount from about 25% to about 75%; (b) tacrine in an amount from about 10% to about 80%; and (c) a binding agent in an amount from about 1% to about 10%; and (B) a sealing layer over the immediate release pellets comprising: (a) a sealing agent in an amount up to about 6%, and (b) a first plasticizing agent in an amount up to about 5%; and (2) the sustained release composition comprises in percentages by weight of the sustained release composition; (A) the immediate release composition; and (B) a sustaining layer over the immediate release composition comprising; (a) a water-insoluble polymer in an amount from about 40% to about 90%; (b) a water-soluble polymer in
    Type: Grant
    Filed: April 12, 1995
    Date of Patent: November 19, 1996
    Assignee: Warner Lambert Company
    Inventors: S. Shirley Yang, Wayne Boisvert, Nouman A. Muhammad, Jay Weiss