Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4749121 | Reinforced file folder | Donald T. Barber | 1988-06-07 |
| 4588463 | Method of producing a reinforced file folder | Donald T. Barber | 1986-05-13 |
| 4526277 | Hanging folder frame support | Wesley R. Snowden | 1985-07-02 |