Patents by Inventor Patrick Joseph Colpoys, Jr.

Patrick Joseph Colpoys, Jr. 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 of increasing permeability in subsurface earth formation
    Patent number: 3976138
    Abstract: Alumina propping agents having a size of at least 30 mesh are introduced into a fracture created in an oil well/or gas bearing earth formation to deposit a packed multilayer distribution of said alumina propping agents.
    Type: Grant
    Filed: October 15, 1975
    Date of Patent: August 24, 1976
    Assignee: Union Carbide Corporation
    Inventors: Patrick Joseph Colpoys, Jr., Eugene Allen Neel, Jr.