Patents by Inventor Mark J. Lochmann

Mark J. Lochmann 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).

  • In situ lithology determination
    Patent number: 4475038
    Abstract: A method for enhancing neutron induced gamma ray logging records includes generating a baseline signal which represents compton scattering noise and obtaining a difference signal by subtracting the baseline signal from the data signal. The noise reduced difference signal is calibrated to obtain abundances of elements in a rock formation. A lithology is determined by in situ measurement by using the noise reduced logging records to obtain abundances of individual elements which are used to correct water saturation and porosity and obtain mineral compositions.
    Type: Grant
    Filed: April 16, 1982
    Date of Patent: October 2, 1984
    Inventors: Mark J. Lochmann, Robert C. Ivey