Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11274384 | Liquid barrier nonwoven fabrics with ribbon-shaped fibers | Pierre Grondin, Ralph A. Moody, III, John F. Steffen | 2022-03-15 |
| 5667911 | Methods of making cross-ply microporous membrane battery separator, and the battery separators made thereby | Wei-Ching Yu | 1997-09-16 |