Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6780369 | Method of finishing plastic concrete mixture | Glenn F. Rogers, Jr., Samuel A. Face, Jr., David J. Francis, Michael J. Davis, Yuting Wang | 2004-08-24 |
| 5814232 | Method of separating constitutent ingredients of mixtures by staged resonant frequency vibration | Samuel A. Face, Jr., Glenn F. Rogers, Jr., Richard P. Bishop, Brad Face | 1998-09-29 |
| 5527175 | Apparatus of staged resonant frequency vibration of concrete | Samuel A. Face, Jr., Bradbury R Face, Glenn F. Rogers, Jr., Richard P. Bishop | 1996-06-18 |
| 5520862 | Method of staged resonant frequency vibration of concrete | Samuel A. Face, Jr., Bradbury R Face, Glenn F. Rogers, Jr., Richard P. Bishop | 1996-05-28 |