Patents by Inventor Jan Fritsche

Jan Fritsche 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).

  • Concentrate of triterpenes
    Patent number: 6824811
    Abstract: The invention concerns concentrates of ursolic acid or its salts and oleanoic acid, wherein (i) ursolic acid and oleanoic acid or its salts are present in an total amount for the two of more than 22 wt %, preferably 30 to 65 wt % (ii) sugar residues are present in an amount of less than 40 wt %, preferably less than 25 wt %, in particular in an amount of 1 to 10 wt % (iii) while ursolic acid and oleanoic acid or its salts are present in a weight ratio of more than 3.6, preferably 4.0 to 6.0 (iv) the balance being other materials, including glycerides and/or triterpenes other than ursolic acid and oleanoic acid and a method to make these concentrates.
    Type: Grant
    Filed: April 9, 2002
    Date of Patent: November 30, 2004
    Assignee: Loders Croklaan USA LLC
    Inventors: Jan Fritsche, Otto Eduard Rosier, Ulrike Schmid, Erik Schweitzer
  • Concentrate of triterpenes
    Publication number: 20030049365
    Abstract: The invention concerns concentrates of ursolic acid or its salts and oleanoic acid, wherein
    Type: Application
    Filed: April 9, 2002
    Publication date: March 13, 2003
    Applicant: Unilever Patent Holdings
    Inventors: Jan Fritsche, Otto Eduard Rosier, Ulrike Schmid, Erik Schweitzer