Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D591261 | Entry phone | — | 2009-04-28 |
| D590808 | Entry phone | — | 2009-04-21 |
| D535268 | Video entry-phone control board | — | 2007-01-16 |
| D534885 | Video entry-phone control board | — | 2007-01-09 |
| D511675 | Cover plate for electrical devices | — | 2005-11-22 |
| D508198 | Cover plate for electrical devices | — | 2005-08-09 |