Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7182479 | Electronic flare | Lester A. Subrattee | 2007-02-27 |
| 6501340 | Oscillator with frequency stabilizing circuit and method of constructing same | — | 2002-12-31 |
| 6393063 | Two-way digital communication system and method without carrier lock-on or ingress interference | Jacob E. Smitter | 2002-05-21 |
| 6388617 | Radio beacon with a GPS interface for automatically activated EPIRBs | Richard C. Havens, Robert Schmidt | 2002-05-14 |
| 5921656 | Water activated emergency strobe light | Mark S. Clark | 1999-07-13 |
| 5710989 | Water-activated emergency radio beacon | — | 1998-01-20 |
| 5563612 | Frequency multiplier circuitry for radio beacons | Richard C. Havens | 1996-10-08 |
| 5395707 | Environmentally safe water-activated battery | Walter K. McCarter, Jorgen T. Fischer | 1995-03-07 |