Patents by Inventor Marvin I. Green

Marvin I. Green 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).

  • Patent number: 4325803
    Abstract: A method for the separation and recovery of organic material from rock, including the steps of forming a slurry containing the rock bearing the organic material and hydrogenating said material via a hydrogen transfer agent which is a liquid at standard conditions.
    Type: Grant
    Filed: August 7, 1980
    Date of Patent: April 20, 1982
    Assignee: Chem Systems Inc.
    Inventors: Marvin I. Green, Abraham P. Gelbein