Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8951489 | Cost control for CO2 capture | Bill Elmer Richardson, Dennis W. Johnson | 2015-02-10 |
| 8882896 | Multi-directional outlet transition and hood | Dennis W. Johnson | 2014-11-11 |