Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5508691 | Self-contained electronic lock with changeable master and slave codes | Neal J. Castleman | 1996-04-16 |
| 5461218 | Electronic key having an elongated handle and requiring no rotation about the handle axis; method of use thereof | Neal J. Castleman | 1995-10-24 |
| D348603 | Implement for controlling an electronic lock mechanism | Neal J. Castleman | 1994-07-12 |
| 5322992 | Implement for controlling an electronic lock mechanism | Neal J. Castleman | 1994-06-21 |