Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11512257 | Integration of hydrogen-rich fuel-gas production with olefins production plant | David B. Spicer, Thomas T. Hirst, James L. Kendall, Steven M. Slack | 2022-11-29 |
| 11498834 | Production of hydrogen-rich fuel-gas with reduced CO2 emission | David B. Spicer, Thomas T. Hirst, James L. Kendall | 2022-11-15 |
| 10428930 | Ball screw with a cooling passage | Yu-Wei Chuang, Sheng Hong | 2019-10-01 |
| 10088034 | Double-nut cooling ball screw | — | 2018-10-02 |