Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4966639 | Apparatus for manufacture of reinforced file folders | George B. Pfeffer | 1990-10-30 |
| 4749121 | Reinforced file folder | Erhard P. Walter | 1988-06-07 |
| 4588463 | Method of producing a reinforced file folder | Erhard P. Walter | 1986-05-13 |
| 4580815 | Composite strip for add-on tab for file folder | — | 1986-04-08 |
| 4523776 | Method of adding color coded labels to files | — | 1985-06-18 |
| 4473158 | File hangers | — | 1984-09-25 |
| 4329191 | System for alphabetically labelling articles | — | 1982-05-11 |
| 4312453 | File hanging system | — | 1982-01-26 |
| 4288170 | File binding system | — | 1981-09-08 |
| 4281445 | Apparatus and method for replacement of file folders having fasteners | George B. Pfeffer, Esther E. Olson | 1981-08-04 |
| 4240848 | System for alphabetically labelling articles | — | 1980-12-23 |
| 4204639 | Coded label | Thomas C. Scrymgeour | 1980-05-27 |
| 4183779 | Automatic indicia applying machine | Dale Lee Anderson | 1980-01-15 |