Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8590938 | Environmentally friendly binding of calendars | — | 2013-11-26 |
| 8356648 | Calendar binding apparatus and related methods | — | 2013-01-22 |
| 7780370 | Environmentally friendly binding of calendars | — | 2010-08-24 |
| 7422405 | Binding of a sheet of paper | Eric Rodney DeBeer | 2008-09-09 |
| 7251875 | Calendar slide and hanger tape | Eric R. De Beer, Allan Gavronsky | 2007-08-07 |
| 6585631 | Hanging file folder assembly apparatus and method | William M. Hoffman | 2003-07-01 |
| 6190298 | Manufacture of file folders | — | 2001-02-20 |
| 5862579 | File fastener method of manufacture | — | 1999-01-26 |
| 5707194 | Binding of Calendars | William M. Hoffman | 1998-01-13 |
| 5641234 | File fastener | — | 1997-06-24 |
| 5346573 | Method of manufacturing a paper binder | William M. Hoffman | 1994-09-13 |
| 5292204 | Paper binder | William M. Hoffman | 1994-03-08 |
| 5007758 | File folder | — | 1991-04-16 |
| 4993861 | File folder and method of manufacture | William M. Hoffman | 1991-02-19 |
| 4950097 | File folder and method of manufacture | — | 1990-08-21 |