Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683749 | Method for preparing asbestos-free chlor-alkali diaphragm | Donald W. DuBois | 1997-11-04 |
| 5612089 | Method for preparing diaphragm for use in chlor-alkali cells | John O. Snodgrass | 1997-03-18 |