Patents by Inventor Joseph R. Dolezal

Joseph R. Dolezal 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).

  • Method for preventing plastic from hardening in a dispenser tip
    Patent number: 5000895
    Abstract: A method for preventing hardening of plastic material in a dispenser tip during periods of nonuse of the dispenser tip. The method involves providing a balloon around the dispenser tip, and then filling the balloon with plastic material.
    Type: Grant
    Filed: August 8, 1990
    Date of Patent: March 19, 1991
    Assignee: Chrysler Corporation
    Inventors: Steven L. Evans, Joseph R. Dolezal
  • Combination coaster and ashtray
    Patent number: D249712
    Type: Grant
    Filed: May 16, 1977
    Date of Patent: September 26, 1978
    Inventor: Joseph R. Dolezal