Patents by Inventor Hoi Ki Cheung

Hoi Ki Cheung 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).

  • System and process of biodiesel production
    Patent number: 8192696
    Abstract: A system and process for continuous production of fatty acid methyl esters (FAME) from the fatty acid triglycerides of waste oil via transesterification in the presence of a reusable sugar-based catalyst. The system and process incorporates re-cycling and re-use of waste by-product streams to result in a near-zero emissions, with a 97% product yield mix consisting of almost pure biodiesel and a very small percentage of impurities including glycerol.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: June 5, 2012
    Inventors: Stephanie Marie Gurski, Anam Kazim, Hoi Ki Cheung, Amani Obeid
  • System and process of biodiesel production
    Publication number: 20100166620
    Abstract: A system and process for continuous production of fatty acid methyl esters (FAME) from the fatty acid triglycerides of waste oil via transesterification in the presence of a reusable sugar-based catalyst. The system and process incorporates re-cycling and re-use of waste bi-product streams to result in a near-zero emissions, with a 97% product yield mix consisting of almost pure biodiesel and a very small percentage of impurities including glycerol.
    Type: Application
    Filed: November 18, 2009
    Publication date: July 1, 2010
    Inventors: Stephanie Marie Gurski, Anam Kazim, Hoi Ki Cheung, Amani Obeid