Patents by Inventor Laxman Singh

Laxman Singh 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).

  • Dynamic supercritical fluid extraction system
    Patent number: 4898673
    Abstract: Soluble materials are continuously extracted from solids using extracting solvents such as carbon dioxide by circulating a mixture of the solids in carbon dioxide at elevated pressure through a closed loop pipeline. A mixture of extracts dissolved in carbon dioxide is continuously removed from the system and material to be extracted is continually added. Multiple extraction stages are also disclosed.
    Type: Grant
    Filed: July 11, 1987
    Date of Patent: February 6, 1990
    Assignee: Vitamins, Inc.
    Inventors: Wayne K. Rice, Laxman Singh
  • Method for producing wheat germ lipid products
    Patent number: 4298622
    Abstract: Wheat germ oil is treated by degumming with phosphoric acid and water, bleaching with activated clay and distilled in a centrifugal molecular still at 140.degree.-200.degree. C. at pressures below 50 milli-torr. The free fatty acids which are removed by the distillation step may be recovered as valuable by-products. The phospholipids removed in the degumming step may be recovered as valuable by-products. A vitamin E concentrate may be prepared by further distilling the purified wheat germ oil at 220.degree.-300.degree. C. at pressures below 25 milli-torr.
    Type: Grant
    Filed: April 3, 1979
    Date of Patent: November 3, 1981
    Assignee: Vitamins, Inc.
    Inventors: Laxman Singh, Wayne K. Rice