Patents by Inventor Richard W. Plymale

Richard W. Plymale 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).

  • Adherent coating from ethylene diamine tetra acetic acid and methacryl comonomer
    Patent number: 4968779
    Abstract: An adherent coating for calcium and magnesium containing minerals consists essentially of an integral block of the following structure: ##STR1## wherein R and R' are selected from the group including ethylene oxide, propylene oxide, vinyl, acrylic, methacrylate, styrene and combinations thereof. The present invention also provides a method of making the adherent coating and substrates with which it is effective.
    Type: Grant
    Filed: June 23, 1988
    Date of Patent: November 6, 1990
    Inventor: Richard W. Plymale
  • Composition and method for treating teeth
    Patent number: 3997504
    Abstract: In accordance with the invention there is provided a method, and a composition for the practice of the method, for repairing tooth or bone structure wherein there is applied to the tooth or bone tissue a composition comprising a polymerized or polymerizable organic phosphoryl monofluoride thereby to attain a strong bond to the tooth or bone tissue.
    Type: Grant
    Filed: February 20, 1975
    Date of Patent: December 14, 1976
    Inventor: Richard W. Plymale