Patents by Inventor Fred Chun-Chien Twu

Fred Chun-Chien Twu 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).

  • Process for well fluids base oil via metathesis of alpha-olefins
    Publication number: 20030236175
    Abstract: Disclosed is a process for preparation of compositions having utility as well fluid base oils. The process involves metathesis of alpha-olefins followed by isomerization of the metathesis products. The base oils resulting from the process of this invention are environmentally friendly in that they are only mildly toxic to marine life, are highly biodegradable and have very low pour point temperatures. These properties make the base oils ideal candidates for use as components of well fluids for cold climates and offshore applications.
    Type: Application
    Filed: May 23, 2003
    Publication date: December 25, 2003
    Inventors: Fred Chun-Chien Twu, S. Alex Christensen, Scott Hensey, William R. Rost
  • Process for well fluids base oil via metathesis of alpha-olefins
    Publication number: 20030224945
    Abstract: Disclosed is a process for preparation of compositions having utility as well fluid base oils. The process involves metathesis of alpha-olefins followed by isomerization of the metathesis products. The base oils resulting from the process of this invention are environmentally friendly in that they are only mildly toxic to marine life and have very low pour point temperatures. These properties make the base oils ideal candidates for use as components of well fluids for cold climates and offshore applications.
    Type: Application
    Filed: May 29, 2002
    Publication date: December 4, 2003
    Inventors: Fred Chun-Chien Twu, S. Alex Christensen, Scott Hensey, William R. Rost
  • Isomerization process of a mixture containing vinyl and vinylidene olefins
    Patent number: 6407302
    Abstract: A method for the isomerization of a mixture of vinyl and vinylidene olefins having 10 to 35 carbons atoms to form a mixture comprising both di- and tri-substituted internal olefins including deep internal olefins.
    Type: Grant
    Filed: January 7, 2000
    Date of Patent: June 18, 2002
    Assignee: BP Corporation North America Inc.
    Inventors: Fred Chun-Chien Twu, William L. Cox