Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12339263 | Detection device transfer system | Douglas Edward DeVries | 2025-06-24 |
| 12241879 | Reference gas management in a breath alcohol calibration station | Douglas Edward DeVries | 2025-03-04 |
| 12203925 | Dual sensor types in intoxicant detection | Douglas Edward DeVries | 2025-01-21 |
| 11971395 | Secure data handling in a breath alcohol calibration station | Douglas Edward DeVries | 2024-04-30 |
| 11789009 | Dual sensor types in breath alcohol detection | Douglas Edward DeVries | 2023-10-17 |
| 11415564 | Secure data handling in a breath alcohol calibration station | Douglas Edward DeVries | 2022-08-16 |
| 11047840 | Reference gas management in a breath alcohol calibration station | Douglas Edward DeVries | 2021-06-29 |
| 10948468 | Fault-tolerant breath alcohol calibration station and method | Douglas Edward DeVries | 2021-03-16 |
| 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 |