Patents by Inventor Herbert Grasshoff

Herbert Grasshoff 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 use of a pneumatic conveying apparatus for conveying glass fibres with specific properties
    Patent number: 7192222
    Abstract: The invention describes a method of use of a conveying apparatus for the pneumatic conveyance of sized glass fibers, the sized glass fibers having a size extractability of at most 85%, preferably at most 50% and with particular preference at most 40%.
    Type: Grant
    Filed: May 13, 2005
    Date of Patent: March 20, 2007
    Assignee: Lanxess Deutschland GmbH
    Inventors: Robert Hubertus Van Mullekom, Detlev Joachimi, Matthias Bienmüller, Herbert Grasshoff, Maarten De Bock
  • Method of use of a pneumatic conveying apparatus for conveying glass fibres with specific properties
    Publication number: 20050265793
    Abstract: The invention describes a method of use of a conveying apparatus for the pneumatic conveyance of sized glass fibres, the sized glass fibres having a size extractability of at most 85%, preferably at most 50% and with particular preference at most 40%.
    Type: Application
    Filed: May 13, 2005
    Publication date: December 1, 2005
    Inventors: Robert Van Mullekom, Detlev Joachimi, Matthias Bienmuller, Herbert Grasshoff, Maarten De Bock
  • Method and apparatus for the pneumatic conveying of fine bulk material
    Patent number: 6786681
    Abstract: A method and an apparatus for the pneumatic conveying of fine bulk material, in particular glass fibers.
    Type: Grant
    Filed: June 3, 2002
    Date of Patent: September 7, 2004
    Assignee: Bayer Aktiengesellschaft
    Inventor: Herbert Grasshoff
  • Method and apparatus for the pneumatic conveying of fine bulk material
    Publication number: 20020187012
    Abstract: A method and an apparatus for the pneumatic conveying of fine bulk material, in particular glass fibers, are described.
    Type: Application
    Filed: June 3, 2002
    Publication date: December 12, 2002
    Inventor: Herbert Grasshoff