Patents by Inventor Guo-Tang Liu

Guo-Tang Liu 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 preparing alkyl esters of fatty acids from fats and oils
    Patent number: 6288251
    Abstract: Provided is a process for producing a fatty acid alkylester through a transesterification of triglyceride contained in a fat and oil by causing the fat and oil and an alcohol to react with each other. In this process, the reaction is performed in an atmosphere in which the alcohol is in super-critical state in the absence of a metal alkali catalyst and an acid catalyst. This makes it possible to eliminate a pre-treatment process for esterifying free fatty acids contained in the fat and oil and, in addition, to eliminate or simplify recovering and refining processes of the reaction product by suppressing the by-production of a fatty acid soap.
    Type: Grant
    Filed: August 14, 2000
    Date of Patent: September 11, 2001
    Assignee: Lonford Development Limited
    Inventors: Keiichi Tsuto, Guo-Tang Liu