Patents by Inventor Michael W. C. Coville

Michael W. C. Coville 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).

  • Aqueous free-radical polymerization using redox system initiator that avoids adverse effects of polymerization inhibiting cations
    Patent number: 4145495
    Abstract: Addition of a chelating agent and an chelatable inert cation species overcomes the inhibiting effects of impurity chelatable cation species present in an aqueous polymerization medium containing a redox system comprising an oxidizing agent and a chelatable metal reducing agent.
    Type: Grant
    Filed: May 24, 1978
    Date of Patent: March 20, 1979
    Assignee: American Cyanamid Company
    Inventors: Peter M. Robinson, Michael W. C. Coville, Robin W. Dexter
  • Treatment of acrylamide polymer gel
    Patent number: 4132844
    Abstract: A method for reducing the amount of water-insolubles and free monomer in an aqueous acrylamide polymer gel whereby the gel is heated at from about 80.degree. C to about 150.degree. C for at least about 30 minutes while the water content of the gel is maintained substantially constant.
    Type: Grant
    Filed: May 23, 1977
    Date of Patent: January 2, 1979
    Assignee: American Cyanamid Company
    Inventor: Michael W. C. Coville