Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D439186 | Chime housing | Lai Chiu | 2001-03-20 |
| D376117 | Corner mount passive infrared motion detector | — | 1996-12-03 |
| D375097 | Radio communicator | — | 1996-10-29 |
| 4631527 | Transmitter-receiver coded security alarm system | Kenneth I. De Witt | 1986-12-23 |
| D265310 | Telephone | — | 1982-07-06 |
| 4187496 | Keyless vehicle intrusion alarm | Henry H. Hoge | 1980-02-05 |