Patents by Inventor David Eric William Hill

David Eric William Hill 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).

  • Fibre treatment
    Patent number: 5776598
    Abstract: A method of treating a surface of a fiber, e.g. cellulosic fiber, with a finish in which the surface finish is applied as an aqueous emulsion stabilized at a first pH value and at the latest when applied to the fiber the emulsion is caused to destabilize by a change in the first pH value. The invention also relates to cellulosic fiber and threads thereof and to tampons made from cellulosic fiber.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: July 7, 1998
    Assignee: Faserwerk Kelheim GmbH
    Inventors: Bernd Huber, Gerhard Stein, Heinz Paul Poter, David Eric William Hill