Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4885355 | Water-insoluble polymers from cyclic sulfonium compounds | Ritchie A. Wessling, Donald L. Schmidt | 1989-12-05 |
| 4797456 | Aqueous-dispersible cyclic sulfonium compounds that cure to form water-insoluble polymers | Ritchie A. Wessling, Donald L. Schmidt | 1989-01-10 |