Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4528384 | Addition polymerizable aromatic sulfonium salts and polymers thereof | Donald L. Schmidt, Ritchie A. Wessling | 1985-07-09 |
| 4477640 | Addition polymerizable aromatic sulfonium salts and polymers thereof | Donald L. Schmidt, Ritchie A. Wessling | 1984-10-16 |
| 4431768 | Aqueous compositions containing organic polymers curable at low temperatures in the wet state | Ritchie A. Wessling | 1984-02-14 |
| 4214096 | Novel isothiouronium salts | Ritchie A. Wessling, Dale S. Gibbs | 1980-07-22 |
| 4196298 | Cyclic sulfonium ylids | Donald L. Schmidt | 1980-04-01 |