Patents by Inventor Peter Kreutzmann

Peter Kreutzmann 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).

  • METHOD FOR THE SYNTHESIS OF A-RING AROMATIZED ACETYL MINOCYCLINES
    Publication number: 20100173991
    Abstract: The aim of the invention to provide a less complex method for the production of A-ring aromatized acetyl minocyclines of the formula (I), wherein R1 to R5=acetyl and/or H, which can also be used on an industrial scale, is achieved in that minocycline hydrochloride is reacted with acetanhydride in the presence of a proton catcher, the reaction product is subjected to chromatographic filtration using a carrier material and an eluant, the eluant is distilled off, and the product is subsequently cleaned by recrystallization.
    Type: Application
    Filed: June 25, 2008
    Publication date: July 8, 2010
    Inventors: Peter Lorenz, Peter Kreutzmann, Fritz Rothe, Jens Martens-Lobenhoffer, Harry Schmidt, Gerald Wolf
  • Serine proteinase inhibitors
    Patent number: 6939851
    Abstract: The invention relates to serine protease inhibitors having the amino acid sequence in accordance with Seq. ID No. 1.
    Type: Grant
    Filed: June 22, 1999
    Date of Patent: September 6, 2005
    Assignee: Pharis Biotec GmbH
    Inventors: Wolf-Georg Forssmann, Hans-Jürgen Mägert, Ludger Ständker, Peter Kreutzmann