Patents by Inventor James D. Mumford, III

James D. Mumford, III 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).

  • Sensors for sulfur activity measurements
    Patent number: 5464523
    Abstract: A method and a sensor to measure the sulfur activity in sulfur-containing environments are disclosed. The active component is a non-stoichiometric metal sulfide foil or film. In the case of a thin sulfide film, a ceramic substrate is employed for improved mechanical rigidity. The electrical conductivity of the sulfide is related to the sulfur activity of the process stream to which it is exposed.
    Type: Grant
    Filed: May 18, 1994
    Date of Patent: November 7, 1995
    Assignee: Exxon Research & Engineering Co.
    Inventors: Trikur A. Ramanarayanan, Vinod K. Pareek, James D. Mumford, III, Horst Witzke
  • Method for joining bi-metallic tubulars and a bi-metallic tubular weld configuration
    Patent number: 5265790
    Abstract: A method for joining bimetallic tubulars and a bimetallic tubular weld configuration which ensures both a continuous corrosion resistant inner lining across the joint as well as the required mechanical strength.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: November 30, 1993
    Assignee: Exxon Research & Engineering Company
    Inventors: James D. Mumford, III, Vinod K. Pareek