Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5977661 | Switches and circuits for solenoid control | — | 1999-11-02 |
| 5246258 | Rim type door lock with interchangeable bolt assemblies and adjustable backset plate assemblies | Barry Kerschenbaum | 1993-09-21 |
| 4800741 | Electrically and manually operable door lock with convenient backset selection | Barry Kerschenbaum, Charles Kerschenbaum | 1989-01-31 |