Patents by Inventor Johnny Schatvet

Johnny Schatvet 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).

  • Method and measuring device for testing the support and or covering of an oil or gas pipeline
    Patent number: 4146791
    Abstract: A measuring device to be conveyed through an oil or gas pipeline at the bottom of the sea is provided for measuring the radioactivity of the surroundings along the pipeline. Thus, the support and/or the covering of the pipeline may be tested, the sea bottom sediments having an appreciably higher gamma radiation source strength than the sea water and the oil or gas which flow through the pipeline.
    Type: Grant
    Filed: May 19, 1977
    Date of Patent: March 27, 1979
    Assignee: Institutt for Atomenergi
    Inventors: John B. Dahl, Johnny Schatvet, Kristian Skarsvag