Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5268524 | Preparation of linear alkyl aromatics | David J. Martella, Frank J. Chen | 1993-12-07 |
| 5262508 | Process for preparing alkyl phenol-sulfur condensate lubricating oil additives | David J. Martella, Frank J. Chen | 1993-11-16 |
| 5236608 | Alkyl phenol-sulfur condensates as fuel and lubricating oil additives | David J. Martella | 1993-08-17 |
| 5118875 | Method of preparing alkyl phenol-formaldehyde condensates | David J. Martella, Frank J. Chen | 1992-06-02 |
| 5082470 | Alkyl phenol-formaldehyde condensates as fuel additives | David J. Martella | 1992-01-21 |
| 5039437 | Alkyl phenol-formaldehyde condensates as lubricating oil additives | David J. Martella | 1991-08-13 |
| 4976882 | Alkyl phenol-sulfur condensates as fuel and lubricating oil additives | David J. Martella | 1990-12-11 |