Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5011466 | Method of making a T-shirt grocery bag having a coupon | Robert B. DeMatteis | 1991-04-30 |
| 4909636 | Coupon for T-shirt grocery bag | Robert B. De Matteis | 1990-03-20 |
| 4821985 | Rack for plastic T-shirt grocery bags | Robert B. DeMatteis | 1989-04-18 |