Patents by Inventor Robert L. Samborn

Robert L. Samborn 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).

  • Portable water tester with cap
    Patent number: D608670
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: January 26, 2010
    Assignee: HM Digital, Inc.
    Inventors: Robert L. Samborn, Charles F. Lee, Jin H. Lee, Yun-Ho Son