Patents by Inventor Karl Ulrich Thiele

Karl Ulrich Thiele 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).

  • Catalyst and method for its production and use
    Patent number: 6417320
    Abstract: The production of linear polyester by the interchange of ester radicals or esterification and polycondensation of multivalent alcohols with multivalent carboxylic acids takes place by means of catalysts. In order that the catalyst features the lowest possible content of catalytically active metal compound, the carrier substance that forms the heterogeneous phase comprises particles of the finest grain and of porous structure and features a surface of great inner, reactive and/or coordinated centers, whereby a catalytically active metal compound is adsorbed in the pores.
    Type: Grant
    Filed: February 25, 2000
    Date of Patent: July 9, 2002
    Assignee: Zimmer Aktiengesellschaft
    Inventors: Brigitta Otto, Karl Ulrich Thiele, Xiaogang Guo