Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8193919 | Apparatuses and methods for driving a doorbell system peripheral load at a higher current | Peter Langer | 2012-06-05 |
| 7477134 | Apparatuses and methods for driving a doorbell system peripheral load at a higher current | Peter Langer | 2009-01-13 |
| 7429924 | Automatic doorbell driver | Peter Langer | 2008-09-30 |