Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6789552 | Method of cleaning a toilet | Robert G. Robinson | 2004-09-14 |
| 6694037 | Spider-less loudspeaker with active restoring apparatus | William B. Rottenberg, Andre G. Routh | 2004-02-17 |