Issued Patents All Time
Showing 26–30 of 30 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6846966 | Method and apparatus for treating oxygenate-containing feeds and their use in conversion of oxygenates to olefins | David Lumgair, James H. Beech, Jr. | 2005-01-25 |
| 6844480 | Method of separating dimethyl ether from an olefin stream | James R. Lattner, David Lumgair, Jeffrey Alan Kabin | 2005-01-18 |
| 6559248 | Process of removing contaminants from an olefin stream using extractive distillation | Dan E. Hendriksen, Minquan Cheng, Keith H. Kuechler, David Lumgair, Richard Shutt | 2003-05-06 |
| 4599475 | Process for xylene isomerization using ZSM-23 zeolite | Charles T. Kresge, James C. Vartuli | 1986-07-08 |
| 4547605 | Catalyst for alkylation of aromatic hydrocarbons | Charles T. Kresge, John P. McWilliams, James C. Vartuli | 1985-10-15 |