Patents by Inventor Devanand L. Luthria

Devanand L. Luthria 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 making an enriched mixture of polyunsaturated fatty acid esters
    Patent number: 6395778
    Abstract: This invention is directed to a process for making an enriched mixture comprising a polyunsaturated fatty acid ester having the Formula (V): In one embodiment, this process comprises transesterifying an oil from Schizochytrium sp. with an alcohol in the presence of a base to form a saturated fatty acid ester and the polyunsaturated fatty acid ester (the fatty acid esters are formed from the alcohol and fatty acid residues of at least one glyceride in the oil). Urea is subsequently dissolved in a medium comprising the fatty acid esters to form a medium comprising the fatty acid esters and dissolved urea. This medium is then cooled or concentrated to form (a) a precipitate comprising urea and at least a portion of the saturated fatty acid ester, and (b) a liquid fraction comprising at least most of the polyunsaturated fatty acid ester. Afterward, the precipitate and liquid fraction are separated.
    Type: Grant
    Filed: January 11, 2001
    Date of Patent: May 28, 2002
    Assignee: OmegaTech, Inc.
    Inventor: Devanand L. Luthria
  • Process for making an enriched mixture of polyunsaturated fatty acid esters
    Publication number: 20020026063
    Abstract: This invention is directed to a process for making an enriched mixture comprising a polyunsaturated fatty acid ester having the Formula (V): 1
    Type: Application
    Filed: January 11, 2001
    Publication date: February 28, 2002
    Inventor: Devanand L. Luthria