Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5370830 | Hydrosonic process for forming electret filter media | Bernard Cohen | 1994-12-06 |
| 5336452 | Process for hydrosonically area embossing thin thermoplastic film materials | Bernard Cohen | 1994-08-09 |
| 5314737 | Area thinned thin sheet materials | Bernard Cohen | 1994-05-24 |