Patents by Inventor John Richard Soulen

John Richard Soulen 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).

  • Complex antimony sulfides as lubricant additives
    Patent number: 3965016
    Abstract: Complex sulfides of antimony are used as lubricant additives which are effective in imparting extreme pressure and anti-wear properties to lubricants.
    Type: Grant
    Filed: May 27, 1975
    Date of Patent: June 22, 1976
    Assignee: Pennwalt Corporation
    Inventor: John Richard Soulen