Patents by Inventor Ramesh Sah

Ramesh Sah 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).

  • Well plug quality testing
    Patent number: 4607694
    Abstract: A method is described for testing the quality of cement slurry installed in a borehole to form a plug. The density of the cement, when relatively pure, is compared with the density after the slurry has been placed in situ and has been exposed to potential contamination. The presence of a contaminant is detected by a departure in the measured density from the value for when the cement is relatively pure.
    Type: Grant
    Filed: January 16, 1985
    Date of Patent: August 26, 1986
    Inventor: Ramesh Sah