Patents by Inventor Hoc M. Nguyen

Hoc M. Nguyen 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).

  • Reconstitutable lyophilized protein formulation
    Patent number: 5192743
    Abstract: A formulation for proteins is provided that comprises a lyophilized mixture of a protein, a water-soluble etherified cellulose in an amount that upon reconstitution of the formulation will be sufficient to form a gel, and an excipient to facilitate rehydration of the gel and to maintain protein integrity during storage of the lyophilized gel product. When reconstituted to a gel, this formulation can be applied, for example, to tissue in need of treatment.
    Type: Grant
    Filed: January 16, 1992
    Date of Patent: March 9, 1993
    Assignee: Genentech, Inc.
    Inventors: Chung C. Hsu, Hoc M. Nguyen, Sylvia S. Wu
  • Mechanically sheared collagen implant material and method
    Patent number: 4642117
    Abstract: An injectable collagen material composed of reconstituted, mechanically sheared atelopeptide collagen fibers. The material is prepared by passing reconstituted collagen fibers repeatedly through a rigid mesh screen, until a substantial reduction in fiber size and size-heterogeneity is achieved. The mechanically sheared fibers may be further crosslinked to improve implant characteristics.
    Type: Grant
    Filed: March 22, 1985
    Date of Patent: February 10, 1987
    Assignee: Collagen Corporation
    Inventors: Hoc M. Nguyen, George H. Chu