Patents by Inventor Raymond L. Mazza

Raymond L. Mazza 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 removing conduit from curved borehole
    Patent number: 4287953
    Abstract: A method for removing a conduit from a curved borehole by applying a compression load to the conduit to cause it to bend away from the inside of the borehole curve.
    Type: Grant
    Filed: June 9, 1980
    Date of Patent: September 8, 1981
    Assignee: Conoco, Inc.
    Inventor: Raymond L. Mazza
  • Pretreatment for fracturing coal seams
    Patent number: 4283089
    Abstract: A pretreatment for use in fracturing coal seams to increase gas permeability of the seams. The pretreatment involves injecting a material capable of swelling coal into a coal seam prior to fracturing the coal seam. The pretreatment material swells the coal and closes the natural cleats therein, enhancing the effectiveness of the subsequent fracturing step.
    Type: Grant
    Filed: June 12, 1980
    Date of Patent: August 11, 1981
    Assignee: Conoco, Inc.
    Inventors: Raymond L. Mazza, H. Douglas Dahl, Ronald W. Umphrey