Patents by Inventor Peter King Costello

Peter King Costello 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).

  • Ion nitrided creping doctor blade
    Patent number: 5849158
    Abstract: Creping doctor blades useful for making soft tissues are substantially improved by ion nitriding the surface(s) of the doctor blade to produce a hardened surface while retaining the resilient interior of the non-treated blade. The resulting blades have approximately a three-fold increase in blade life.
    Type: Grant
    Filed: September 19, 1997
    Date of Patent: December 15, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Peter King Costello, Clifford Lee Alberts
  • Method for creping tissue
    Patent number: 5753076
    Abstract: Creping doctor blades useful for making soft tissues are substantially improved by ion nitriding the surface(s) of the doctor blade to produce a hardened surface while retaining the resilient interior of the non-treated blade. The resulting blades have approximately a three-fold increase in blade life.
    Type: Grant
    Filed: February 3, 1997
    Date of Patent: May 19, 1998
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Peter King Costello, Clifford Lee Alberts