Patents by Inventor Bernhard Stoll

Bernhard Stoll 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).

  • Process for producing ultra-high molecular weight polyamide fibers
    Patent number: 5234644
    Abstract: A process for producing ultra-high molecular weight polyamide fibers by thermal post condensation in the solid phase in the presence of catalysts of normally viscous polyamide fibers below their melting point in the absence of oxygen wherein the fibers have extremely high relative solution viscosities.
    Type: Grant
    Filed: August 27, 1991
    Date of Patent: August 10, 1993
    Assignee: Ems-Inventa AG
    Inventors: Gustav Schutze, Bernhard Stoll