Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5330663 | Neutral and low overbased alkylphenoxy sulfonate additive compositions | Robert H. Wollenberg, Richard J. Nelson, John H. McDonald, III, Susanne G. Ruelas, Curtis B. Campbell | 1994-07-19 |
| 5330664 | Neutral and low overbased alkylphenoxy sulfonate additive compositions derived from alkylphenols prepared by reacting an olefin or an alcohol with phenol in the presence of an acidic alkylation catalyst | Robert H. Wollenberg, Richard J. Nelson, John H. McDonald, III, Susanne G. Ruelas, Curtis B. Campbell | 1994-07-19 |