Patents by Inventor Doug Harper

Doug Harper 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).

  • Paper coating lubricant
    Patent number: 6162771
    Abstract: An aqueous paper and paperboard coating composition is provided containing as a lubricant a vegetable oil triglyceride which is hydrophobic and non-ionic.
    Type: Grant
    Filed: June 30, 1999
    Date of Patent: December 19, 2000
    Assignee: Omnova Solutions Inc.
    Inventors: William Floyd, Doug Harper, Nolan Thompson
  • Paper coating lubricant
    Patent number: 6103308
    Abstract: An aqueous paper and paperboard coating composition is provided containing as a lubricant a vegetable oil triglyceride which is hydrophobic and non-ionic.
    Type: Grant
    Filed: April 23, 1998
    Date of Patent: August 15, 2000
    Assignee: GenCorp Inc.
    Inventors: William Floyd, Doug Harper, Nolan Thompson