Patents by Inventor Gunther Entenmann

Gunther Entenmann 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).

  • Semisolid mixtures of amorphous oligomers and crystalline polymers based on lactic acid
    Patent number: 5725881
    Abstract: The present invention relates to semisolid mixtures of oligomers and/or polymers based on lactic acid, the preparation thereof and the use thereof as absorbable implants.
    Type: Grant
    Filed: October 26, 1994
    Date of Patent: March 10, 1998
    Assignee: Boehringer Ingelheim KG
    Inventors: Berthold Buchholz, Gunther Entenmann
  • Resorbable mouldings and process for producing them
    Patent number: 5700901
    Abstract: The invention relates to resorbable mouldings and processes for producing them.
    Type: Grant
    Filed: January 11, 1995
    Date of Patent: December 23, 1997
    Assignee: Boehringer Ingelheim KG
    Inventors: Achim Hurst, Wladis Winkler-Gwienek, Berthold Buchholz, Dieter Bendix, Gunther Entenmann
  • Implantable, biodegradable system for releasing active substance
    Patent number: 5633002
    Abstract: The invention relates to an implantable biodegradable system for releasing active substance.
    Type: Grant
    Filed: May 4, 1995
    Date of Patent: May 27, 1997
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Herbert Stricker, Gunther Entenmann, Otto Kern, Michel Mikhail, Bernd Zierenberg
  • Catalyst-free resorbable homopolymers and copolymers
    Patent number: 5434242
    Abstract: The invention relates to resorbable homopolymers and copolymers which are substantially free from polymerization catalysts and processes for preparing them.
    Type: Grant
    Filed: December 12, 1994
    Date of Patent: July 18, 1995
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Dieter Bendix, Gunther Entenmann
  • Meso-lactide
    Patent number: 5214159
    Abstract: The invention relates to meso-lactide having a melting point of 52.8.degree. C. and to processes for its preparation.
    Type: Grant
    Filed: July 12, 1990
    Date of Patent: May 25, 1993
    Assignee: Boehringer Ingelheim GmbH
    Inventors: Manfred Muller, Joachim Hess, Wilhem-Gustav Schnell, Dieter Bendix, Gunther Entenmann
  • Meso-lactide, processes for preparing it and polymers and copolymers produced therefrom
    Patent number: 4983745
    Abstract: The invention relates to a meso-lactide having a melting point of 52.8.degree. C., processes for its preparation, and its use in the preparation of resorbable polymers and copolymers.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: January 8, 1991
    Assignee: Boehringer Ingelheim KG
    Inventors: Manfred Muller, Joachim Hess, Wilhem-Gustav Schnell, Dieter Bendix, Gunther Entenmann
  • Catalyst-free resorbable homopolymers and copolymers
    Patent number: 4960866
    Abstract: The invention relates to resorbable homopolymers and copolymers which are substantially free from polymerization catalysts and processes for preparing them.
    Type: Grant
    Filed: January 24, 1989
    Date of Patent: October 2, 1990
    Assignee: Boehringer Ingelheim Zentrale
    Inventors: Dieter Bendix, Gunther Entenmann