Patents by Inventor Michael Roznowski

Michael Roznowski 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).

  • Additive composition for oil well cementing formulations
    Patent number: 5258072
    Abstract: An oil and gas well cementing composition has styrene/butadiene latex and a combination of nonionic surfactants for improved physical properties, especially fluid loss. The composition has no anionic surfactants.
    Type: Grant
    Filed: June 1, 1992
    Date of Patent: November 2, 1993
    Assignee: BASF Corporation
    Inventors: Sridhar Gopalkirshnan, Michael Roznowski