Patents by Inventor Richard E. Lorentz

Richard E. Lorentz 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 using polymers of amido-sulfonic acid containing monomers and salts as drilling additive
    Patent number: 5039433
    Abstract: A method for producing homopolymers and copolymers from amido-sulfonic acid or salt containing monomers in the presence of high energy mechanical mixing utilizing a final stage polymerization temperature of from about 200.degree. F. to below the degradation temperature of the monomer. The process produces a solid homopolymer or copolymer which can be utilized as fluid loss agents.
    Type: Grant
    Filed: March 26, 1990
    Date of Patent: August 13, 1991
    Assignee: The Lubrizol Corporation
    Inventors: Thomas M. Sopko, Richard E. Lorentz
  • Method of producing polymers of amido-sulfonic acid monomers with high energy agitators
    Patent number: 4812544
    Abstract: A method for producing homopolymers and copolymers from amido-sulfonic acid or salt containing monomers in the presence of high energy mechanical mixing utilizing a final stage polymerization temperature of from about 200.degree. F. to below the degradation temperature of the monomer. The process produces a solid homopolymer or copolymer which can be utilized as fluid loss agents.
    Type: Grant
    Filed: September 10, 1985
    Date of Patent: March 14, 1989
    Assignee: The Lubrizol Corporation
    Inventors: Thomas M. Sopko, Richard E. Lorentz