Patents by Inventor David R. Plogman

David R. Plogman 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).

  • Electronic leak detector
    Patent number: D432932
    Type: Grant
    Filed: October 29, 1999
    Date of Patent: October 31, 2000
    Assignee: SPX Corporation
    Inventors: Mike S. Evans, Scott King, Howard S. Ryan, David R. Plogman