Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5951190 | Pocket loose-leaf binder | — | 1999-09-14 |
| 5941571 | Pocket liner | Frederick Christian Schweitzer | 1999-08-24 |
| 5938241 | Loose-leaf binder | — | 1999-08-17 |
| 5915874 | Book pocket in-fold attachment | F. Christian Schweitzer | 1999-06-29 |
| 5660514 | Method of making pocket liner for covers of looseleaf binders or books | — | 1997-08-26 |
| 5441357 | Case made ring binder and method of fabricating same | — | 1995-08-15 |
| 4583877 | Ring binder cover | — | 1986-04-22 |
| 4240535 | Clutch and brake assembly | Robert B. Pierce | 1980-12-23 |