Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6215066 | Outlet covering plate | Francis Frederick Kelso | 2001-04-10 |
| 5998747 | Switch plate assembly | Francis Fredrick Kelso | 1999-12-07 |
| D415472 | Toggle/dimmer switch plate | Francis Fredrick Kelso | 1999-10-19 |
| 5810135 | Plug and switch assembly | Paul A. Hedrick, Preston D. Schultz, Richard Gelinas | 1998-09-22 |