Issued Patents 2002
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6462215 | Sulfonation, sulfation, and sulfamation | David Richard Corbin | 2002-10-08 |
| 6448435 | Sulfonation, sulfation, and sulfamation | David Richard Corbin | 2002-09-10 |
| 6384271 | Sulfonation, sulfation and sulfamation | David Richard Corbin | 2002-05-07 |