Patents by Inventor Ronald J. Kelpin

Ronald J. Kelpin 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: D432586
    Type: Grant
    Filed: July 27, 1999
    Date of Patent: October 24, 2000
    Assignees: Cristiano Galli-Zugaro, Ronald L. Kelpin
    Inventors: Cristiano Galli-Zugaro, Ronald J. Kelpin