Issued Patents All Time
Showing 26–37 of 37 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5268524 | Preparation of linear alkyl aromatics | David J. Martella, John J. Jaruzelski | 1993-12-07 |
| 5262508 | Process for preparing alkyl phenol-sulfur condensate lubricating oil additives | David J. Martella, John J. Jaruzelski | 1993-11-16 |
| 5177288 | Polybutene process | — | 1993-01-05 |
| 5118875 | Method of preparing alkyl phenol-formaldehyde condensates | David J. Martella, John J. Jaruzelski | 1992-06-02 |
| 5032653 | Direct synthesis by cationic polymerization of nitrogen-containing polymers | Herve M. Cheradame, Robert D. Lundberg, Jean De La Croix Habimana | 1991-07-16 |
| 5017279 | Multistep process for the manufacture of novel polyolefin lubricants from sulfur containing thermally cracked petroleum residua | Alexis A. Oswald, Ramon L. Espino, Kuo L. Peng | 1991-05-21 |
| 4982045 | Fixed bed process for polymerizing liquid butenes | Robert D. Lundberg | 1991-01-01 |
| 4952739 | Organo-Al-chloride catalyzed poly-n-butenes process | — | 1990-08-28 |
| 4935576 | Polybutene process | — | 1990-06-19 |
| 4849572 | Process for preparing polybutenes having enhanced reactivity using boron trifluoride catalysts (PT-647) | Jacob Emert, Robert D. Lundberg, Gregory C. Giffin | 1989-07-18 |
| 4686054 | Succinimide lubricating oil dispersant | Max J. Wisotsky, Ricardo Bloch, Darrell W. Brownawell, Antonio Gutierrez | 1987-08-11 |
| 4558170 | Polyisobutylene process | Darrell W. Brownawell | 1985-12-10 |