Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10877008 | Reference gas management in a breath alcohol calibration station | Douglas Edward DeVries | 2020-12-29 |
| 10877023 | Dual sensor types in breath alcohol detection | Douglas Edward DeVries | 2020-12-29 |
| 10663440 | Secure data handling in a breath alcohol calibration station | Douglas Edward DeVries | 2020-05-26 |