Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10401106 | Quick release storage and locking systems and methods of use thereof | — | 2019-09-03 |
| 9932764 | Flexible vault | — | 2018-04-03 |
| 6932221 | Mounting apparatus | — | 2005-08-23 |
| 6817477 | Device for locking firearms and other articles | Matthew Cramer Mullen | 2004-11-16 |
| D483648 | Apparatus for supporting a firearm | — | 2003-12-16 |
| D482260 | Apparatus for mounting and locking a firearm | Matthew Cramer Mullen | 2003-11-18 |
| 5446643 | Harmonic blocking converter system | — | 1995-08-29 |
| 5446642 | Harmonic blocking converter system | — | 1995-08-29 |
| 5063349 | Transformer-coupled gradient speed-up circuit | Peter B. Roemer, Otward M. Mueller, John Norton Park | 1991-11-05 |
| 4745513 | Protection of GTO converters by emitter switching | — | 1988-05-17 |
| 4723188 | Permanent magnet surge arrestor for DC power converter | — | 1988-02-02 |
| 4686618 | Fault protection for GTO voltage-source inverters | — | 1987-08-11 |
| 4611267 | Snubber arrangements with energy recovery for power converters using self-extinguishing devices | — | 1986-09-09 |
| 4593204 | Driver circuits for gate turn-off thyristors and bipolar transistors | — | 1986-06-03 |
| 4253140 | Method and apparatus for improved control of auxiliary impulse commutated inverters | — | 1981-02-24 |