Patents by Inventor Sang Chul Park

Sang Chul Park 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).

  • Method of inactivation of viral and bacterial blood contaminants with quinolines as photosensitizer
    Patent number: 5798238
    Abstract: Viral and bacterial contaminants present in biological solutions are inactivated by mixing one of a novel class of photosensitizer with said solution and irradiating the mixture. Quinoline and quinolone compounds are useful as photosensitizers in this method. With certain photosensitizers a blocking agent may also be employed.
    Type: Grant
    Filed: June 7, 1995
    Date of Patent: August 25, 1998
    Assignee: Baxter International Inc.
    Inventors: Raymond P. Goodrich, Jr., Sang Chul Park
  • Method of inactivation of viral and bacterial blood contaminants
    Patent number: 5789601
    Abstract: Viral and bacterial contaminants present in biological solutions are inactivated by mixing one of a novel class of photosensitizer with said solution and irradiating the mixture.
    Type: Grant
    Filed: April 21, 1995
    Date of Patent: August 4, 1998
    Assignee: Baxter International Inc.
    Inventors: Sang Chul Park, Raymond P. Goodrich, Jr., Nagender Yerram, Samuel O. Sowemimo-Coker, Matthew S. Platz, Brian M. Aquila
  • Trichohyalin and transglutaminase-3 and methods of using same
    Patent number: 5616500
    Abstract: The sequences of a pair of human proteins, trichohyalin and transglutaminase-3, in addition to the sequence of the mouse transglutaminase-3 protein, have been discovered. The enzyme transglutaminase-3 is used to cross-link the structural protein trichohyalin in order to form a gel.
    Type: Grant
    Filed: April 30, 1993
    Date of Patent: April 1, 1997
    Assignee: The United States of America as represented by the Department of Health & Human Services
    Inventors: Peter M. Steinert, In-Gyu Kim, Soo-Il Chung, Sang-chul Park
  • Full time four wheel drive system
    Patent number: 5167293
    Abstract: A full time four wheel drive system has a housing in the vicinity of an engine and a transmission, a central differential gear assembly and a viscous coupling assembly containing a front differential gear assembly. The central differential gear, front wheel differential gear, and viscous coupling assemblies are disposed in parallel relationship within the housing for uniformly distributing the load of axle and drive shafts according to the road conditions. The system has a simple structure and economically uses the space in the engine compartment.
    Type: Grant
    Filed: December 9, 1991
    Date of Patent: December 1, 1992
    Assignee: Hyundai Motor Company
    Inventors: Sang Chul Park, Shin Sang Lee