Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5156891 | Resin-impregnated strengthened pocket bottoms | Mark R. Isoe | 1992-10-20 |
| 5124190 | Resin-impregnated strengthened pocket bottoms | Mark R. Isoe | 1992-06-23 |
| 4910069 | Resin-coated strengthened pocket bottoms | Mark R. Isoe | 1990-03-20 |
| D255473 | Toy block | Richard A. Chase, Jacob Van Dyke | 1980-06-17 |