Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4714185 | Perforated web feeding apparatus | Leo J. Hubbard | 1987-12-22 |
| 4706861 | Perforated web feeding apparatus | — | 1987-11-17 |
| 4616773 | Forms feeding apparatus | — | 1986-10-14 |
| 4614508 | Drive mechanism especially for web feed tractors | — | 1986-09-30 |
| 4611737 | Tractor apparatus | John Dana Hubbard | 1986-09-16 |
| 4275785 | Heat exchange tubing blade assembly | — | 1981-06-30 |
| 4222160 | Method of making heat exchange tubing assembly | — | 1980-09-16 |