Patents by Inventor Michael Herman Hoff

Michael Herman Hoff 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).

  • Low Toxicity Viscosifier and Methods of Using the Same
    Publication number: 20140066340
    Abstract: Viscosifying compositions having reduced toxicity are used in treatment fluids in subterranean operations; methods include providing such treatment fluids including a viscosifying composition and an aqueous base fluid, the viscosifying composition including hydroxyethyl cellulose, about 10% to about 60% by weight of 2-pyrrolidone, and about 10% to about 60% by weight of a water soluble monoalkyl ether of propylene glycol having substantially no swelling effect on the hydroxyethyl cellulose, wherein a weight ratio of hydroxyethyl cellulose to 2-pyrrolidone is in a range from about 1:2 to about 2.6:1 and the method including placing the treatment fluid in a subterranean formation.
    Type: Application
    Filed: August 30, 2012
    Publication date: March 6, 2014
    Applicant: Halliburton Energy Services, Inc.
    Inventor: Michael Herman Hoff