Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D350646 | Lid for tool chest | Frank Bescher, Steven Frederick Kohagen, Wade A. F. Maple, David A. Trower, Douglas F. Wolff | 1994-09-20 |
| 4714158 | Molded tool tray assembly | Donald N. Sulentic, Richard D. Purchase | 1987-12-22 |
| 4570392 | Storehouse construction | Steven J. Kreger, Richard D. Purchase | 1986-02-18 |
| 4239195 | Workbench | Emerson V. Purkapile | 1980-12-16 |