Patents by Inventor Virendra V. Shah

Virendra V. Shah 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).

  • Water resistance additive for cementitious compositions
    Patent number: 4878948
    Abstract: A cementitious composition comprising cement, aggregate, a water soluble or water dispersible polymer, and a polyethylene glycol ester of a C.sub.8 -C.sub.22 fatty acid having an HLB value from about 11 to 20 as a water resistance additive.
    Type: Grant
    Filed: May 18, 1988
    Date of Patent: November 7, 1989
    Assignee: Air Products and Chemicals, Inc.
    Inventor: Virendra V. Shah