Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9181106 | Systems and methods for control of a gas or chemical | — | 2015-11-10 |
| 8580125 | Method and apparatus for control of a gas or chemical | Richard E. Speece | 2013-11-12 |
| 7754082 | Method and apparatus for control of a gas or chemical | Richard E. Speece | 2010-07-13 |
| 7320749 | Method and apparatus for control of a gas or chemical | Richard E. Speece | 2008-01-22 |