Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369172 | Process for using nitric acid to oxidize polyarylene sulfide to polyarylene sulfoxide | Dirk Zierer, Helmut Scheckenbach | 2002-04-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6369172 | Process for using nitric acid to oxidize polyarylene sulfide to polyarylene sulfoxide | Dirk Zierer, Helmut Scheckenbach | 2002-04-09 |