Patents by Inventor Teunis L. VAN Waart

Teunis L. VAN Waart 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).

  • Process and apparatus for investigating the activity of a cathodic protection unit
    Patent number: 4090170
    Abstract: A method and apparatus for remotely measuring the cathodic protection level on a cathodically protected structure. The method uses a remote apparatus to measure the cathodic protection level and convert it to a related acoustic signal that is transmitted via the structure or surrounding media to a conveniently located receiving location.
    Type: Grant
    Filed: November 11, 1976
    Date of Patent: May 16, 1978
    Assignee: Shell Oil Company
    Inventors: Jan Lincklaen-Arriens, Alfred VAN Tilburg, Teunis L. VAN Waart