Issued Patents 1989
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4883450 | Process for making single side free plastic bag | — | 1989-11-28 |
| D302112 | Pack of guesseted bags | — | 1989-07-11 |
| 4833017 | Particle-impregnated one-sided cling stretch wrap film | — | 1989-05-23 |
| 4819898 | Bag holding, dispensing, loading and discharge system | Lewis E. Sable, Richard A. Wenzel | 1989-04-11 |
| 4816104 | Methods and systems for preparing flat-bottom thermoplastic sack | — | 1989-03-28 |
| 4812055 | Thermoplastic bag and method of forming the same | Randolph D. Prader | 1989-03-14 |