Patents by Inventor Vinay Kumar Rao

Vinay Kumar Rao 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).

  • Method of treating a papermaking furnish for making soft tissue
    Patent number: 5785813
    Abstract: An efficient and effective method for treating tissue making stock to make soft tissues involves adding a softening agent to a first papermaking furnish of short fibers, such as eucalyptus fibers. A second papermaking furnish of long fibers, such as softwood fibers, is blended with the short fiber furnish. Thereafter, wet strength agents and/or dry strength agents are added to the blended furnish. The treated furnish is then fed to a headbox and processed into soft tissue in any suitable manner.
    Type: Grant
    Filed: February 24, 1997
    Date of Patent: July 28, 1998
    Assignee: Kimberly-Clark Worldwide Inc.
    Inventors: Michael John Smith, Vinay Kumar Rao, Gary Lee Shanklin