Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31269 | Heat-sealable antistatic polypropylene films | William J. Andrews, David J. C. Espley | 1983-06-07 |
| 4294882 | Heat-sealable antistatic polypropylene films | William J. Andrews, David J. C. Espley | 1981-10-13 |
| 4198256 | Method of making a heat-sealable oriented polypropylene film | William J. Andrews | 1980-04-15 |