Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6145883 | Filing system | — | 2000-11-14 |
| 6056377 | Dual-slant file holder | — | 2000-05-02 |
| 5797665 | File holders with folder retention | — | 1998-08-25 |
| 5630658 | Hemmed edge file holder | — | 1997-05-20 |
| 5624166 | Anti-tip guard for mobile filing cabinets | Randall R. Theken | 1997-04-29 |
| 5197764 | Alphanumeric color-coded filing method and system therefor | Joseph S. Hicinbothem | 1993-03-30 |
| 4520055 | Split label index tab | — | 1985-05-28 |