Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6282931 | Electrically operated actuator and method | Scott Padiak, David C. Brown, Paul C. Evans, Stephen R. Elpern, David G. Elpern +2 more | 2001-09-04 |
| 6089058 | Method for retrofitting a deadbolt assembly with an electrically operated actuator | Stephen R. Elpern, David G. Elpern, Allen C. Ward, Walid Habib, Paul C. Evans +2 more | 2000-07-18 |
| 5979199 | Electrically operated actuator | Stephen R. Elpern, David G. Elpern, Allen C. Ward, Walid Habib, Paul C. Evans +2 more | 1999-11-09 |
| 5844130 | Apparatus for maintaining a constant radial distance between a transmitting circuit and an antenna coil | Randy J. Hilgart, Larry Duane Ridge | 1998-12-01 |