Patents by Inventor Jospeh J. Watkins

Jospeh J. Watkins 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).

  • Fluorinated poly(arylene sulfide)(arylene disulfide)
    Patent number: 5258489
    Abstract: A polymer having repeating units corresponding to the structure ##STR1## wherein R is selected from the group consisting of ##STR2## where z is 1, 2, 3, or 4, A is a divalent substituted or unsubstituted aromatic radical, y is in the range of 0.10 to 0 and x is in the range of 0.02 to 0.90 and n is at least 50.
    Type: Grant
    Filed: March 5, 1993
    Date of Patent: November 2, 1993
    Assignee: Eastman Chemical Company
    Inventors: David R. Fagerburg, Jospeh J. Watkins, Paul B. Lawrence