Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6114580 | N-arylsulfilimine compounds and their use as catalysts in the preparation of N-arylarylsulfonamide compounds | James W. Ringer, Douglas L. Pearson, Anne P. Wallin | 2000-09-05 |
| 5973148 | N-arylsulfilimine compounds and their use as catalysts in the preparation of N-arylarylsulfonamide compounds | James W. Ringer, Douglas L. Pearson, Anne P. Wallin | 1999-10-26 |
| 5552546 | Process for the preparation of 2-ethoxy-4,6-dihydroxypyrimidine | Douglas L. Pearson, Jon A. Orvik, Gary Roth, Ron B. Leng, Dawn Shiang | 1996-09-03 |