Patents by Inventor Edward George Howard, Jr.

Edward George Howard, Jr. 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).

  • Porous polytetrafluoro-ethylene and preparation
    Patent number: 5939198
    Abstract: This invention relates to porous polyfluoroethylene (PTFE), shaped articles prepared therefrom, and to methods of preparing said articles.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: August 17, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward George Howard, Jr., Arthur Zenker Moss
  • Ink jet inks containing emulsion-polymer additives to improve water-fastness
    Patent number: 5912280
    Abstract: Water-fastness of inks containing pigment and a polymeric dispersant is improved by the addition of core-shell or tetrafluoroethylene emulsion polymers. The printed ink images exhibit improved resistance to smudge or smear when handled or marked with highlight pens.
    Type: Grant
    Filed: December 27, 1996
    Date of Patent: June 15, 1999
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Waifong Liew Anton, Milan Bohuslav Bednarek, Edward George Howard, Jr., Kathryn Amy Pearlstine, Soodebeh Tronson
  • Porous polytetraflouroethylene and preparation
    Patent number: 5840775
    Abstract: This invention relates to porous polyfluoroethylene (PTFE), shaped articles prepared therefrom, and to methods of preparing said articles.
    Type: Grant
    Filed: March 4, 1997
    Date of Patent: November 24, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward George Howard, Jr., Arthur Zenker Moss
  • Porous polytetrafluoroethylene and preparation
    Patent number: 5721283
    Abstract: This invention relates to porous polyfluoroethylene (PTFE), shaped articles prepared therefrom, and to methods of preparing said articles.
    Type: Grant
    Filed: March 20, 1995
    Date of Patent: February 24, 1998
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Edward George Howard, Jr., Arthur Zenker Moss
  • 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
  • High tensile strength polyethylene/low-hydration alumina composites
    Patent number: 4097447
    Abstract: Polyethylene/alumina composites which are prepared by polymerizing ethylene onto the surface of low-hydration alumina prepared by calcining alumina trihydrate at a temperature of at least about 300.degree. C provide molded objects having significantly increased tensile strengths as compared with the corresponding composites based on uncalcined alumina trihydrate.
    Type: Grant
    Filed: March 31, 1977
    Date of Patent: June 27, 1978
    Assignee: E. I. Du Pont de Nemours and Company
    Inventor: Edward George Howard, Jr.