Patents by Inventor Darrell R. Catte

Darrell R. Catte 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).

  • Axial current meter for in-situ continuous monitoring of corrosion and cathodic protection current
    Patent number: 7189319
    Abstract: First and second axial current meters (ACM) are mechanically connected to a well casing just above and below a corrosive zone and a master axial current meter (MACM) is connected to the casing at the earth's surface, the MACM periodically obtaining measurements of axial current from the ACMs to determine how much cathodic protection current is to be applied to the casing to avoid corrosion.
    Type: Grant
    Filed: February 18, 2004
    Date of Patent: March 13, 2007
    Assignee: Saudi Arabian Oil Company
    Inventors: Husain M. Al-Mahrous, Darrell R. Catte