Patents by Inventor Gunnar Mikalsen, deceased

Gunnar Mikalsen, deceased 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).

  • Method for recovery and separation of chitin, proteins and astaxanthin and esters thereof
    Patent number: 5210186
    Abstract: A method is provided for recovering astaxanthin, astaxanthin carotenoids, astaxanthin esters, chitin and proteins from crustacean tissues containing such. The method comprises an initial extraction of crustacean tissue with boiling lye to form an alkaline extract and an extracted residue. The alkaline extract, upon cooling, forms separate layers from which can be recovered component protein, astaxanthin, astaxanthin carotenoids and astaxanthin esters. The lye extracted residue of chitin-containing such crustacean tissue is readily processed to provide chitin.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: May 11, 1993
    Inventors: Gunnar Mikalsen, deceased, by Ester Mikalsen, heiress