Patents by Inventor Gerhard Hey

Gerhard Hey 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).

  • Non-ionic emulsifiers
    Patent number: 6063954
    Abstract: This invention relates to non-ionic emulsifiers based on fatty acid esters of polyalkoxylated polyhydric alcohols as fundamental constituents. At least two fundamental constituents are linked to each other by the reaction of hydroxyl groups with a polyisocyanate, with the formation of urethane bonds.
    Type: Grant
    Filed: April 10, 1998
    Date of Patent: May 16, 2000
    Assignee: Herberts Gesellschaft mit beschrankter Haftung
    Inventors: Wolfgang Diener, Volker Duecoffre, Carmen Flosbach, Gerhard Hey, Walter Schubert