Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7517088 | Light projector | Thomas E. Kretzschmar, Richard A. Wolfe | 2009-04-14 |
| 7207694 | Light emitting diode operating and examination light system | — | 2007-04-24 |
| 6991351 | Illumination system | — | 2006-01-31 |
| 6948830 | Dual beacon obstruction lighting system | — | 2005-09-27 |
| 6744210 | Sealed beam high intensity discharge lamp system for aircraft | — | 2004-06-01 |
| 6525668 | LED array warning light system | — | 2003-02-25 |
| 6464373 | Light emitting diode lighting with frustoconical reflector | — | 2002-10-15 |
| 6439752 | High intensity discharge aircraft landing and taxi light system, method and components | — | 2002-08-27 |
| 6379026 | Obstruction lighting system | — | 2002-04-30 |
| 6376992 | Sealed beam high intensity discharge lamp system for aircraft | — | 2002-04-23 |
| 5421264 | Firearm cartridge with pre-pressurizing charge | — | 1995-06-06 |
| 5301448 | Firearm safety system | Billy R. Bridgewater, Richard L. Costello, Ronald E. Stilwell, Michael Gamache, Kenneth M. Maynard +2 more | 1994-04-12 |
| 5272828 | Combined cartridge magazine and power supply for a firearm | Richard L. Costello, Evan H. Whildin, Sr. | 1993-12-28 |
| 5036767 | Optical window for laser-initiated explosive devices | Mark Folsom | 1991-08-06 |