Patents by Inventor Fred Freudemann

Fred Freudemann 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).

  • Finishing for jeans material
    Patent number: 6547832
    Abstract: Process for the yellowing-inhibiting finishing of textile, indigo-dyed, washed and/or stonewashed and/or bleached denim articles, characterized in that the finishing is carried out from aqueous medium with protonated fatty acid ester-aminoamides and/or hydroxyaminoamides of N-(&bgr;-hydroxyethyl)ethylenediamine, in which the fatty acid radicals each contain from 12 to 22 carbon atoms and which have been protonated with at least 1.5 equivalents of ortho-phosphoric acid per equivalent of basic amino groups.
    Type: Grant
    Filed: July 10, 2000
    Date of Patent: April 15, 2003
    Assignee: Clariant Finance (BVI) Limited
    Inventors: Fred Freudemann, Kurt Poppenwimmer