Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9688591 | Ethylene separation process | Gary A. Sawyer, Steven T. Coleman, Allen David Hood, Jr. | 2017-06-27 |
| 9464240 | Aromatics production process | Steven T. Coleman | 2016-10-11 |
| 9309168 | Staged propylene production process | Allen David Hood, Jr. | 2016-04-12 |
| 8721872 | Processing of acid containing hydrocarbons | Donald H. Powers, Kenneth M. Webber | 2014-05-13 |
| 8663456 | Process for cracking heavy hydrocarbon feed | Sellamuthu G. Chellappan | 2014-03-04 |
| 8658019 | Process for cracking heavy hydrocarbon feed | Sellamuthu G. Chellappan | 2014-02-25 |
| 8658022 | Process for cracking heavy hydrocarbon feed | Sellamuthu G. Chellappan | 2014-02-25 |
| 8395005 | Production of 1-butene and propylene from ethylene | Steven T. Coleman, Gary A. Sawyer | 2013-03-12 |
| 8273936 | Process for cracking heavy hydrocarbon feed | Steven T. Coleman | 2012-09-25 |
| 7550638 | Integrated cracking and metathesis process | Steven T. Coleman | 2009-06-23 |
| 7374661 | Thermal cracking | Sellamuthu G. Chellappan | 2008-05-20 |
| 7074976 | Propylene production | Donald H. Powers, Steven T. Coleman | 2006-07-11 |
| 6977318 | Propylene production | — | 2005-12-20 |
| 6872862 | Propylene production | Donald H. Powers, Steven T. Coleman | 2005-03-29 |
| 6303842 | Method of producing olefins from petroleum residua | Richard B. Halsey, Don H. Powers | 2001-10-16 |