Patents by Inventor Harry Nelson Humphreys

Harry Nelson Humphreys 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 reducing the polymer and bentonite requirement in papermaking
    Patent number: 6103065
    Abstract: The present invention relates to a method for reducing the polymer and bentonite requirement in papermaking wherein medium and high molecular weight polymers are reacted with bentonite. Further, mechanical shearing of the furnish after polymer addition is not required.
    Type: Grant
    Filed: March 30, 1999
    Date of Patent: August 15, 2000
    Assignee: BASF Corporation
    Inventors: Harry Nelson Humphreys, Charles Talmadge