Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4412962 | Method of molding a mechanically frothed urethane resin foam and an open-top injection mold therefore | Michael Bessette | 1983-11-01 |
| 4393450 | Three-dimensional model-making system | — | 1983-07-12 |