Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11614384 | Enclosure for mobile monitoring of the composition and properties of ambient air | John W. Birks, Craig J. Williford, Andrew Allen Turnipseed | 2023-03-28 |
| 10684215 | Method for measuring air pollutants using a folded tubular photometer | John W. Birks, Andrew Allen Turnipseed, Craig J. Williford | 2020-06-16 |
| 10295517 | Heated graphite scrubber to reduce interferences in ozone monitors | John W. Birks, Andrew Allen Turnipseed, Craig J. Williford | 2019-05-21 |
| 10207927 | Method to produce a calibration, reagent or therapeutic gas by exposing a precursor gas to ultraviolet light | Craig J. Williford, John W. Birks | 2019-02-19 |
| 9423340 | Aqueous ozone monitor utilizing gas stripping | John W. Birks, Bova Xiong, Christopher M. Ford, Craig J. Williford | 2016-08-23 |
| 8395776 | Ozone monitor with gas-phase ozone scrubber | John W. Birks, Craig J. Williford | 2013-03-12 |