Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4877679 | Multilayer article of microporous and porous materials | Dennis D. Leatherman, Thomas A. Rechlicz | 1989-10-31 |
| 4833172 | Stretched microporous material | Thomas Leigh, Dennis D. Leatherman | 1989-05-23 |