Patents by Inventor Samuel R. Werrin

Samuel R. Werrin 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).

  • Patent number: D266269
    Type: Grant
    Filed: July 9, 1980
    Date of Patent: September 21, 1982
    Assignee: Premier Dental Products Company
    Inventor: Samuel R. Werrin
  • Patent number: D277605
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: February 12, 1985
    Assignees: Morton Charlestein, Jerrold Frezel
    Inventor: Samuel R. Werrin