Patents by Inventor Harold L. Trentham

Harold L. Trentham 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 for separating carbon dioxide from methane
    Patent number: 4152129
    Abstract: A method is disclosed whereby carbon dioxide and methane in a gaseous mixture can be separated with little energy consumption when the gaseous mixture contains large amounts of carbon dioxide, i.e., from about 30 to about 90 mol percent. The method involves the fractionation of the gas mixture at a pressure below the critical pressure of the mixture and at a temperature above the triple point temperature of the mixture.
    Type: Grant
    Filed: February 4, 1977
    Date of Patent: May 1, 1979
    Assignee: Trentham Corporation
    Inventors: Harold L. Trentham, Arnold M. Hegwer