Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646107 | Production of anionic surfactant granules | William Derek Emery, Kenneth Metcalfe | 1997-07-08 |
| 5641741 | Production of anionic surfactant granules by in situ neutralization | William Derek Emery, Kenneth Metcalfe | 1997-06-24 |