Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE46499 | Self-powered switch initiation system | Bradbury R Face, Clark D Boyd, Gregory Paul Thomas | 2017-08-01 |
| 7692559 | Self-powered switch initiation system | Bradbury R Face, Alfredo Vazquez Carazo, Gregory A. Thomas | 2010-04-06 |
| 7126497 | Self-powered switch initiation system | Bradbury R Face, Alfredo Vazquez Carazo, Gregory A. Thomas | 2006-10-24 |
| 7084529 | Self-powered switch initiation system | Bradbury R Face, Clark D Boyd, Gregory Paul Thomas | 2006-08-01 |
| 6780369 | Method of finishing plastic concrete mixture | Darrell Darrow, Samuel A. Face, Jr., David J. Francis, Michael J. Davis, Yuting Wang | 2004-08-24 |
| 6392329 | Piezoelectric vibrating apparatus | Timothy D. Bryant, Samuel A. Face, Jr. | 2002-05-21 |
| 6101880 | Feedback-responsive piezoelectric vibrating device | Samuel A. Face, Jr., Richard P. Bishop | 2000-08-15 |
| 6013972 | Piezoelectric vibrating apparatus | Samuel A. Face, Jr., Richard P. Bishop | 2000-01-11 |
| 5837298 | Piezoelectrically-actuated vibrating surface-finishing tool | Samuel A. Face, Jr., Richard P. Bishop | 1998-11-17 |
| 5814232 | Method of separating constitutent ingredients of mixtures by staged resonant frequency vibration | Samuel A. Face, Jr., Richard P. Bishop, Darrell Darrow, Brad Face | 1998-09-29 |
| 5527175 | Apparatus of staged resonant frequency vibration of concrete | Samuel A. Face, Jr., Bradbury R Face, Darrell Darrow, Richard P. Bishop | 1996-06-18 |
| 5520862 | Method of staged resonant frequency vibration of concrete | Samuel A. Face, Jr., Bradbury R Face, Darrell Darrow, Richard P. Bishop | 1996-05-28 |