Patents by Inventor Vernon L. Franklin

Vernon L. Franklin 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 for fracturing high temperature subterranean formations
    Patent number: 5305832
    Abstract: A method for hydraulic fracturing using crosslinked guar polymers wherein the high temperature viscosity and thermal stability of said polymers is maximized by adjusting the pH such that the cationic charge density of the polymer is at its maximum. These maximums occur for guar at a pH of 10.5 and for carboxymethylhydroxypropyl guar at a pH of 10.7.
    Type: Grant
    Filed: December 21, 1992
    Date of Patent: April 26, 1994
    Assignee: The Western Company of North America
    Inventors: D. V. Satyanarayana Gupta, Vernon L. Franklin