Patents by Inventor Carl Edwin Ash

Carl Edwin Ash 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).

  • Curing polyketones with high energy radiation
    Patent number: 5925688
    Abstract: Polyketone polymers are cured by exposure to high energy radiation. Radiation sources include gamma radiation sources such as Co.sup.60 emitters as well as e-beam, ion and other commercially used sources of high energy radiation. The materials so produced are high molecular weight crosslinked polyketone polymers which exhibit enhanced mechanical and tribological properties.
    Type: Grant
    Filed: September 15, 1997
    Date of Patent: July 20, 1999
    Assignee: Shell Oil Company
    Inventors: Carl Edwin Ash, Narayana Mysore
  • Curing polyketones with high energy radiation
    Patent number: 5705539
    Abstract: Polyketone polymers are cured by exposure to high energy radiation. Radiation sources include gamma radiation sources such as Co.sup.60 emitters as well as e-beam, ion and other commercially used sources of high energy radiation. The materials so produced are high molecular weight crosslinked polyketone polymers which exhibit enhanced mechanical and tribological properties.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: January 6, 1998
    Assignee: Shell Oil Company
    Inventors: Carl Edwin Ash, Narayana Mysore
  • Polyketones with enhanced tribological properties
    Patent number: 5670586
    Abstract: Polyketone polymers are cured by exposure to high energy radiation. Radiation sources include gamma radiation sources such as Co.sup.60 emitters as well as e-beam, ion and other commercially used sources of high energy radiation. The materials so produced are high molecular weight crosslinked polyketone polymers which exhibit enhanced mechanical and tribological properties.
    Type: Grant
    Filed: December 11, 1995
    Date of Patent: September 23, 1997
    Assignee: Shell Oil Company
    Inventors: Carl Edwin Ash, Narayana Mysore