Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877679 | Multilayer article of microporous and porous materials | Thomas A. Rechlicz, Richard A. Schwarz | 1989-10-31 |
| 4861644 | Printed microporous material | James Young | 1989-08-29 |
| 4833172 | Stretched microporous material | Richard A. Schwarz, Thomas Leigh | 1989-05-23 |