Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5401921 | Two-dimensional primitive root diffusor | Peter D'Antonio | 1995-03-28 |
| 5226267 | Acoustical diffusing and absorbing cinder blocks | Peter D'Antonio, Jorge Pardo | 1993-07-13 |
| 5193318 | Acoustical diffusing and absorbing cinder blocks | Peter D'Antonio | 1993-03-16 |
| 5027920 | Cinder block modular diffusor | Peter D'Antonio | 1991-07-02 |
| 4964486 | Cinder block modular diffusor | Peter D'Antonio | 1990-10-23 |
| D306764 | Acoustical baffle | Peter D'Antonio | 1990-03-20 |
| 4821839 | Sound absorbing diffusor | Peter D'Antonio | 1989-04-18 |
| D291601 | Acoustical baffle | Peter D'Antonio | 1987-08-25 |