Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7464451 | Combination plastic spiral forming machine and semi-automatic plastic spiral binding machine | — | 2008-12-16 |
| 7407356 | Semi-automatic plastic spiral binding machine | — | 2008-08-05 |
| 6851907 | coil spreader for spiral binding machines | Robert Dorishook | 2005-02-08 |
| 6799498 | Micro adjuster for paper punch die | — | 2004-10-05 |
| 6726426 | Combination plastic spiral forming machine and semi-automatic plastic spiral binding machine | — | 2004-04-27 |
| 6547502 | Combination plastic spiral forming machine and semi-automatic plastic spiral binding machine | — | 2003-04-15 |
| 6312204 | Semi-automatic plastic spiral binding machine | Robert Dorishook | 2001-11-06 |
| 6000896 | Semi-automatic plastic spiral binding | Robert Dorishook | 1999-12-14 |
| 5890862 | Semi-automatic plastic spiral binding machine | Robert Dorishook | 1999-04-06 |