Patents by Inventor Thorsten Niklas

Thorsten Niklas 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).

  • Shaped objects for pyrogen retention and processes for their manufacture
    Patent number: 6632361
    Abstract: The invention describes hydrophilically acting shaped objects, in particular semipermeable membranes for pyrogen retention, comprising a synthetic polymer component and an additive made from a copolymer made from vinylpyrrolidone and a vinylimidazole compound, and furthermore processes for manufacturing the shaped objects. The shaped objects of the invention exhibit such a high pyrogen retention capacity that the pyrogen concentrations present in the filtrates are in part below the detection limit of the gel clot LAL test.
    Type: Grant
    Filed: December 22, 2000
    Date of Patent: October 14, 2003
    Assignee: Membrana GmbH
    Inventors: Thorsten Niklas, Friedbert Wechs, Annekatrin Nothdurft
  • Shaped objects for pyrogen retention and processes for their manufacture
    Publication number: 20010006160
    Abstract: The invention describes hydrophilically acting shaped objects, in particular semipermeable membranes for pyrogen retention, comprising a synthetic polymer component and an additive made from a copolymer made from vinylpyrrolidone and a vinylimidazole compound, and furthermore processes for manufacturing the shaped objects. The shaped objects of the invention exhibit such a high pyrogen retention capacity that the pyrogen concentrations present in the filtrates are in part below the detection limit of the gel clot LAL test.
    Type: Application
    Filed: December 22, 2000
    Publication date: July 5, 2001
    Applicant: Membrana GmbH
    Inventors: Thorsten Niklas, Friedbert Wechs, Annekatrin Nothdurft
  • Process for the preparation of aromatic sulfur-containing polymers
    Patent number: 5688908
    Abstract: In the process for the preparation of aromatic sulfur-containing polymers, the polymer is formed from a prepolymer having halogen end groups. The process can be carried out in two stages: 1. Preparation of the prepolymer and 2. conversion of the prepolymer into the polymer. The process is particularly suitable for the preparation of polyphenylene sulfide.
    Type: Grant
    Filed: April 12, 1996
    Date of Patent: November 18, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Michael Haubs, Andreas Schleicher, Thorsten Niklas