Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5672009 | Reclosable pouch and zipper therefor | — | 1997-09-30 |
| 5638586 | Transverse zipper system | Donald L. Van Erden, Michael J. McMahon | 1997-06-17 |
| 5592802 | Transverse zipper system | Donald L. Van Erden, Michael J. McMahon | 1997-01-14 |