Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120891 | Process for oligomerizing olefins using a super-dealuminated Y-zeolite | John R. Sanderson, John F. Knifton | 1992-06-09 |
| 5112473 | Hydrotreating or cracking process employing an acidified dealuminated Y-zeolite | David E. Sherwood, Jr. | 1992-05-12 |
| 5094994 | Catalyst composition for hydroprocessing petroleum feedstocks | David E. Sherwood, Jr., Burton H. Bartley, Laurence D. Neff | 1992-03-10 |
| 5087348 | Hydrocarbon treating process | David E. Sherwood, Jr., Bobby R. Martin | 1992-02-11 |
| 5069890 | Zeolite treating process | David E. Sherwood, Jr., Bobby R. Martin | 1991-12-03 |
| 5047142 | Catalyst composition and method for hydroprocessing petroleum feedstocks | David E. Sherwood, Jr., Burton H. Bartley, Laurence D. Neff | 1991-09-10 |
| 5021228 | Control of sox emission | Edward H. Holst | 1991-06-04 |
| 4941964 | Hydrotreatment process employing catalyst with specified pore size distribution | David E. Sherwood, Jr., Burton H. Bartley, Randall H. Petty | 1990-07-17 |