Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7221966 | Wireless communication systems for masks or helmets | Joseph Birli, Greg Skillicorn | 2007-05-22 |
| 7089930 | Wireless heads-up display for a self-contained breathing apparatus | Jonathan Adams, Joseph Birli, Greg Skillicorn | 2006-08-15 |
| 6823274 | Apparatus and method for testing remaining capacity of a battery | Phillip David Zimmerman, David E. Zimmerman | 2004-11-23 |
| 6710314 | Integral hand-held induction heating tool | Edward A. Reiss, Adam G. Malofsky, John P. Barber, Robert C. Cravens, II, David R. Pacholok +1 more | 2004-03-23 |
| 6639198 | Hand held induction tool with energy delivery scheme | Edward A. Riess, Adam G. Malofsky, John P. Barber, Robert C. Cravens, II | 2003-10-28 |
| 6509555 | Hand held induction tool | Edward A. Riess, Adam G. Malofsky, Bernard M. Malofsky, John P. Barber, Robert C. Cravens, II +2 more | 2003-01-21 |
| 6404500 | Colorimeter apparatus and related process | David J. Schneider, Johnny Michael Sandlin | 2002-06-11 |
| 5420570 | Manually actuatable wrist alarm having a high-intensity sonic alarm signal | Brian J. Leitten, Dennis J. Gallant, Elvin D. Stepp, Kenneth R. Umans | 1995-05-30 |
| 5258746 | Manually actuatable wrist alarm having a high-intensity sonic alarm signal | Brian J. Leitten, Dennis J. Gallant, Elvin D. Stepp, Kenneth R. Umans | 1993-11-02 |
| 4618966 | Frequency shift key modulator | Elvin D. Stepp | 1986-10-21 |
| 4535461 | Digital clock bit synchronizer | Elvin D. Stepp | 1985-08-13 |
| 4449237 | Audio feedback suppressor | Elvin D. Stepp | 1984-05-15 |
| 4423381 | Pulse control circuit | Elvin D. Stepp | 1983-12-27 |