Patents by Inventor Michael Kretschmar

Michael Kretschmar 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).

  • Production of a von Willebrand factor preparation using hydroxylapatite
    Patent number: 7939643
    Abstract: This invention relates to a process for the production of a von Willebrand factor preparation, hydroxylapatite being used as a chromatography medium.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: May 10, 2011
    Assignee: Biotest AG
    Inventors: Michael Kretschmar, Wolfgang Moeller
  • Process for removing fibronectin from plasma fractions
    Patent number: 7863420
    Abstract: The invention relates to a method for separating fibronectin from plasma fractions by adjusting a pH value of less than 5.4 such that fibronectin is precipitated and extracted from the solution.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: January 4, 2011
    Assignee: Biotest AG
    Inventors: Michael Kretschmar, Wolfgang Moeller
  • Production of a von Willebrand factor preparation having a high specific activity
    Patent number: 7659247
    Abstract: This invention relates to a process for the production of a von Willebrand factor preparation having a high specific activity, hydroxylapatite being used as a chromatography medium.
    Type: Grant
    Filed: September 9, 2005
    Date of Patent: February 9, 2010
    Assignee: Biotest AG
    Inventors: Michael Kretschmar, Wolfgang Moeller
  • Production of a von Willebrand Factor Preparation Using Hydroxylapatite
    Publication number: 20070299250
    Abstract: This invention relates to a process for the production of a von Willebrand factor preparation, hydroxylapatite being used as a chromatography medium.
    Type: Application
    Filed: September 9, 2005
    Publication date: December 27, 2007
    Inventors: Michael Kretschmar, Wolfgang Moeller
  • Process For Removing Fibronectin From Plasma Fractions
    Publication number: 20070203330
    Abstract: The invention relates to a method for separating fibronectin from plasma fractions by adjusting a pH value of less than 5.4 such that fibronectin is precipitated and extracted from the solution.
    Type: Application
    Filed: September 9, 2005
    Publication date: August 30, 2007
    Inventors: Michael Kretschmar, Wolfgang Moeller
  • Production of a von willebrand factor prepartion having a great specific activity
    Publication number: 20070135619
    Abstract: This invention relates to a process for the production of a von Willebrand factor preparation having a high specific activity, hydroxylapatite being used as a chromatography medium.
    Type: Application
    Filed: September 9, 2005
    Publication date: June 14, 2007
    Inventors: Michael Kretschmar, Wolfgang Moeller