Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5363451 | Method and apparatus for the active reduction of compression waves | V. Bradford Mason | 1994-11-08 |
| 5224168 | Method and apparatus for the active reduction of compression waves | V. Bradford Mason | 1993-06-29 |