Issued Patents All Time
Showing 25 most recent of 48 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8188021 | Lubricating oil compositions | Rolfe J. Hartley, Stuart Briggs, Jacob Emert, Jai G. Bansal | 2012-05-29 |
| 7163913 | Viscosity index improvers for lubricating oil compositions | Stuart Briggs | 2007-01-16 |
| 6632890 | Hydrogenated block copolymer compositions | Frank S. Bates, Glenn H. Fredrickson, Stephen F. Hahn, Mary Ann Jones, Jerry L. Hahnfeld | 2003-10-14 |
| 4720604 | Process for dehydrogenation of alkylaromatics | — | 1988-01-19 |
| 4665251 | Aromatization reactions with zeolites containing phosphorus oxide | — | 1987-05-12 |
| 4628137 | Process for para-ethyltoluene dehydrogenation | — | 1986-12-09 |
| 4593134 | Process for para-ethyltoluene dehydrogenation | — | 1986-06-03 |
| 4590322 | Use of hydrogen sulfide to improve benzene production over zeolites | — | 1986-05-20 |
| 4590323 | Conversion of paraffins to aromatics over zeolites modified with oxides of group IIIA, IVA and VA elements | — | 1986-05-20 |
| 4590321 | Aromatization reactions with zeolites containing phosphorus oxide | — | 1986-05-20 |
| 4560818 | Process for the oxidative dehydrogenation of ethyltoluene to methylstyrene | — | 1985-12-24 |
| 4560819 | Process for para-ethyltoluene dehydrogenation | — | 1985-12-24 |
| 4548914 | Zeolite catalysts of improved activity and para-selectivity | — | 1985-10-22 |
| 4532226 | Zeolite catalysts modified with Group VI A metal | — | 1985-07-30 |
| 4504594 | Catalysts for para-ethyltoluene dehydrogenation | — | 1985-03-12 |
| 4503163 | Catalysts for para-ethyltoluene dehydrogenation | — | 1985-03-05 |
| 4496662 | Catalysts for para-ethyltoluene dehydrogenation | — | 1985-01-29 |
| 4486616 | Rejuvenation of deselectivated alkylation catalyst | Warren W. Kaeding | 1984-12-04 |
| 4472518 | Shape selective reactions with zeolite catalysts modified with iron and/or cobalt | — | 1984-09-18 |
| 4433186 | Catalysts for para-ethyltoluene dehydrogenation | — | 1984-02-21 |
| 4420418 | Para-selective zeolite catalysts | — | 1983-12-13 |
| 4417084 | Prevention of polymer formation in dehydrogenation of p-ethyltoluene | — | 1983-11-22 |
| 4404123 | Catalysts for para-ethyltoluene dehydrogenation | — | 1983-09-13 |
| 4399059 | Zeolite catalysts modified with group IIIA metal | — | 1983-08-16 |
| 4394300 | Zeolite catalyst modified with group IVB metal | Warren W. Kaeding | 1983-07-19 |