Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688591 | Ethylene separation process | Gary A. Sawyer, Robert S. Bridges, Steven T. Coleman | 2017-06-27 |
| 9309168 | Staged propylene production process | Robert S. Bridges | 2016-04-12 |
| 8222474 | Fractional extraction of butadiene | Joseph P. Bridges, Scott A. Smith, Solon B. Williams | 2012-07-17 |
| 7718841 | Extractive distillation | Joseph P. Bridges, Robert J. Haynal, Solon B. Williams | 2010-05-18 |