Patents by Inventor Allan R. Champion

Allan R. Champion 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).

  • Ultrahigh molecular weight linear polyethylene processes of manufacture
    Patent number: 5684124
    Abstract: Novel ultrahigh molecular weight linear polyethylene (UHMWLPE) in the form of a shaped article, exhibiting a unique combination of properties making the material useful as a bearing surface, in general, but particularly useful as a prosthetic hip joint cup and as other prosthetic shapes for replacement of other joints of the human body. A novel process for preparing this article is also disclosed.
    Type: Grant
    Filed: April 5, 1995
    Date of Patent: November 4, 1997
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Edward George Howard, Jr., Allan R. Champion
  • Method for producing X-ray detectable spandex fibers
    Patent number: 5183614
    Abstract: An X-ray detectable spandex fiber and a method for producing it from a segmented polyurethane polymer comprising finely divided X-ray detectable material such as barium sulfate.
    Type: Grant
    Filed: January 26, 1989
    Date of Patent: February 2, 1993
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Allan R. Champion
  • Reinforced cement
    Patent number: 4515636
    Abstract: Cement product reinforced with p-aramid or acrylic fiber coated with certain sulfonyl azides.
    Type: Grant
    Filed: August 17, 1984
    Date of Patent: May 7, 1985
    Assignee: E. I. Du Pont de Nemours and Company
    Inventors: Thomas E. Carney, Allan R. Champion, Francis M. Logullo, Sr.