Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7980080 | Fluid coupled heat to motion converter (a form of heat engine) FCHTMC | Wayne Pickette, James Fisher | 2011-07-19 |
| 6914977 | Method and apparatus for programming guestroom telephones | Bing Sun | 2005-07-05 |
| 6556663 | Guestroom telephone having single action message retrieval | Bing Sun | 2003-04-29 |
| D448011 | Guest service speakerphone | Bing Sun | 2001-09-18 |