Patents by Inventor Joseph T. Edwards

Joseph T. Edwards 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).

  • Determination of pyrite and siderite content of formation deposits
    Patent number: 4334882
    Abstract: A method for determination of pyrite and sidermite content in core samples is disclosed wherein the method involves a two-step digestion of the minerals in hydrochloric and nitric acids and analysis of the solutions using an inductively coupled plasma atomic emission spectrometer.
    Type: Grant
    Filed: April 1, 1981
    Date of Patent: June 15, 1982
    Assignee: Mobil Oil Corporation
    Inventor: Joseph T. Edwards