Patents by Inventor Andreas Oliver Mittenzwei

Andreas Oliver Mittenzwei 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 OF MANUFACTURING A DRAWN MULTIFILAMENT YARN
    Publication number: 20150361588
    Abstract: The invention relates to a method of manufacturing a polyolefin multifilament yarn comprising twisting a partially drawn multifilament yarn and post-twist-drawing the twisted partially drawn multifilament yarn.
    Type: Application
    Filed: January 27, 2014
    Publication date: December 17, 2015
    Inventors: Evert Florentinus Florimondus DE DANSCHUTTER, Andreas Oliver MITTENZWEI
  • Process for size classifying ammonium sulfate crystals which are present in a suspension
    Patent number: 7380671
    Abstract: The invention relates to a process for size classifying ammonium sulfate crystals using a screen, said process comprising feeding a feed suspension to the screen, said feed suspension comprising said ammonium sulfate crystals in an ammonium sulfate solution, size classifying the ammonium sulfate crystals, and keeping both sides of the screen immersed in liquid during said size classifying.
    Type: Grant
    Filed: April 5, 2002
    Date of Patent: June 3, 2008
    Assignee: DSM IP Assets B.V.
    Inventors: Natasja Anouk Loomans-V. D. Anker, Andreas Oliver Mittenzwei, Bernd Roman Keller, Lianne Van Oord
  • Process for size classifying ammonium sulfate crystals which are present in a suspension
    Publication number: 20050006503
    Abstract: The invention relates to a process for size classifying ammonium sulfate crystals using a screen, said process comprising feeding a feed suspension to the screen, said feed suspension comprising said ammonium sulfate crystals in an ammonium sulfate solution, size classifying the ammonium sulfate crystals, and keeping both sides of the screen immersed in liquid during said size classifying.
    Type: Application
    Filed: April 5, 2002
    Publication date: January 13, 2005
    Inventors: Natasja Loomans-V.D. Anker, Andreas Oliver Mittenzwei, Bernd Keller, Lianne Van Oord