Patents by Inventor James B. Dobbs

James B. Dobbs 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).

  • Corrosion inhibitors and methods of use
    Patent number: 6866797
    Abstract: A class of quaternary ammonium compounds are found to be effective as corrosion inhibitors. These quaternary ammonium compounds may be used alone or in combination with additional components. For example, phosphate esters can be used with the quaternary ammonium compounds. Moreover, thiocarbonyl compounds can also be added to the corrosion inhibitor compositions. These corrosion inhibitors are effective against ferrous metal corrosion, especially under downhole conditions.
    Type: Grant
    Filed: August 3, 2001
    Date of Patent: March 15, 2005
    Assignee: BJ Services Company
    Inventors: Richard L. Martin, Gene F. Brock, James B. Dobbs