Patents by Inventor Gerhard Willert

Gerhard Willert 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).

  • Process for the continuous drying of hydrophilic polymer gels
    Patent number: 5005771
    Abstract: Process for the continuous drying of hydrophilic polymer gels in a cylindrical dryer with a high speed rotor which conveys the material to be dried through the dryer and prevents agglomeration.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: April 9, 1991
    Assignee: Chemie Linz Gesellschaft m.b.H.
    Inventors: Stefan Pieh, Gerhard Willert