Patents by Inventor Martina Nass

Martina Nass 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).

  • Hydrophilic foams and processes for their manufacture
    Patent number: 5336695
    Abstract: Hydrophilic foams based on a polyurethane gel material which can be obtained fromone or more polyether-polyols selected from the group comprising substances formed by the addition of propylene oxide and optionally ethylene oxide on to conventional starter molecules,one or more diisocyanates,one or more superabsorbers,one or more accelerators selected from the group comprising conventional accelerators for polyurethanes,water, and optionallyconventional auxiliary substances and/or additives.
    Type: Grant
    Filed: October 4, 1993
    Date of Patent: August 9, 1994
    Assignee: Beiersdorf Aktiengesellschaft
    Inventors: Martina Nass, Heidi Sacker