Patents by Inventor Heinz-Helmut Werner

Heinz-Helmut Werner 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 the preparation of a vessel prosthesis impregnated with crosslinked gelatin
    Patent number: 4902290
    Abstract: The invention relates to a process to prepare vessel prostheses formed from a porous basic body and an impregnating coating of crosslinked gelatin for sealing the pores.Crosslinking takes place accompanied by the use of a diisocyanate. The impregnating coating has good mechanical and physiological properties.
    Type: Grant
    Filed: July 29, 1988
    Date of Patent: February 20, 1990
    Assignee: B. Braun-SSC AG
    Inventors: Peter Fleckenstein, Heinz-Helmut Werner
  • Vessel and prosthesis impregnated with diisocyanate crosslinked gelatin
    Patent number: 4784659
    Abstract: The invention relates to vessel prostheses formed from a porous vascular prosthesis impregnated with diisocyanate crosslinked gelatin for sealing the pores.
    Type: Grant
    Filed: March 3, 1987
    Date of Patent: November 15, 1988
    Assignee: Intermedicat GmbH
    Inventors: Peter Fleckenstein, Heinz-Helmut Werner
  • Process for the manufacture of sclero protein transplants with increased biological stability
    Patent number: 4357274
    Abstract: In a process for the manufacture of sclero protein transplants in which raw sclero protein from humans or animals is watered, treated with H.sub.2 O.sub.2, degreased, rinsed, dried and sterilized, the improvement in which the sclero protein, after rinsing and prior to drying, is treated with glycerin or polyethylene glycol.
    Type: Grant
    Filed: August 6, 1981
    Date of Patent: November 2, 1982
    Assignee: Intermedicat GmbH
    Inventor: Heinz-Helmut Werner