Patents by Inventor Thomas D. Sullivan

Thomas D. Sullivan 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).

  • Biodegradable product dispenser
    Patent number: 5217164
    Abstract: A dispenser for a product in stick form comprised of inner and outer concentric sleeves of biodegradable material, a base for holding the stick in one end of the inner sleeve, an insert for closing off the other end of the outer sleeve, parallel circumferential tear lines in the outer sleeve defining a central section thereof, and a plurality of parallel circumferential tear lines in the inner sleeve defining circumferential segments that can be removed one by one as the stick is used for exposing a new portion of the stick for use.
    Type: Grant
    Filed: November 13, 1991
    Date of Patent: June 8, 1993
    Assignee: Carter-Wallace, Inc.
    Inventor: Thomas D. Sullivan
  • Folding spanner wrench
    Patent number: D337492
    Type: Grant
    Filed: March 28, 1991
    Date of Patent: July 20, 1993
    Assignee: Ryan Engineering & Design Co., Inc.
    Inventors: Bobby W. Ryan, David Ivey, Thomas D. Sullivan