Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5700386 | Process for making soil release polymer granules | Benjamin Edgar Chapman | 1997-12-23 |
| 5688982 | No-bleach process for making sulfonated fatty acid alkyl ester surfactant | Vajih A. Khan, Benjamin Edgar Chapman | 1997-11-18 |