Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6364654 | Mold assembly for manufacturing a plastic tub with holes | — | 2002-04-02 |
| 5431556 | Mold assembly including resilient core pins | — | 1995-07-11 |
| 5287989 | Molded plastic tub | — | 1994-02-22 |
| 5167898 | Injection mold assembly and method for manufacturing a plastic tub with holes | — | 1992-12-01 |
| 4881891 | Mold side wall locking apparatus | — | 1989-11-21 |
| 4502660 | Mold including side walls with locking projections | Robert E. Brock | 1985-03-05 |