Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5269157 | Insulated beach box with utility attachments | John Yapaola | 1993-12-14 |
| 4964753 | Three roll compactor | Jack Buck, Charles G. Weaver, Darryle E. Fowler | 1990-10-23 |
| 4683756 | Low cost manometer | James L. Derleth | 1987-08-04 |