Patents by Inventor Robert Herpst

Robert Herpst 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 and apparatus for the production of thin films
    Patent number: 6594008
    Abstract: Method and apparatus for forming thin films by the application of a film forming liquid to a substrate at rest or rotating a speed up to 500 rpm and then rotating the film forming liquid on the substrate at a speed and for a time sufficient to form the thin film. Such films can be used for analysis by spectrophotometric methods. Apparatus for forming such thin films is also disclosed.
    Type: Grant
    Filed: November 27, 2000
    Date of Patent: July 15, 2003
    Inventors: Robert Herpst, Kenneth B. Cuthbert
  • Method and apparatus for the production of thin films
    Patent number: 6254931
    Abstract: Method and apparatus for forming thin films by the application of a film forming liquid to a substrate at rest or rotating a speed up to 500 rpm and then rotating the film forming liquid on the substrate at a speed and for a time sufficient to form the thin film. Such films can be used for analysis by spectrophotometric methods. Apparatus for forming such thin films is also disclosed.
    Type: Grant
    Filed: October 27, 1997
    Date of Patent: July 3, 2001
    Inventors: Robert Herpst, Kenneth B. Cuthbert
  • Method of constructing a hydraulic press assembly
    Patent number: 5787564
    Abstract: A hydraulic press assembly and method of making the same in which a substantial portion of the housing encompassing the press is formed of a unibody construction from structural tubing to provide a durable lightweight hydraulic press.
    Type: Grant
    Filed: July 24, 1997
    Date of Patent: August 4, 1998
    Assignee: Robert Herpst
    Inventors: Robert Herpst, Ruben A. Diaz
  • Hydraulic press assembly
    Patent number: 5701814
    Abstract: A hydraulic press assembly and method of making the same in which a substantial portion of the housing encompassing the press is formed of a unibody construction from structural tubing to provide a durable lightweight hydraulic press.
    Type: Grant
    Filed: August 2, 1996
    Date of Patent: December 30, 1997
    Assignee: Robert Herpst
    Inventors: Robert Herpst, Ruben A. Diaz