Douglas Edward DeVries
22Patents
10h-index
16Co-inventors
72Inventor score
Filing activity: Jun 21, 1993 → Apr 11, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5426415A | Breath analyzer for use in automobile ignition locking systems | Physics | 132 | Expired |
| US7934577B2 | Ignition interlock breathalyzer | Performing Operations; Transporting | 88 | Active |
| US8957771B2 | Apparatus, system, and method for implementing and monitoring breath alcohol testing programs, usually from a fixed point location, such as a home | Physics | 48 | Active |
| US10040349B2 | Networked intoxication vehicle immobilization | Electricity | 34 | Active |
| US5612710A | Real time low cost, large scale array 65K color display using lamps | Physics | 18 | Expired |
| US6871755B2 | Ticket counting dispenser | Emerging Cross-Sectional Technologies | 16 | Expired |
| US10663440B2 | Secure data handling in a breath alcohol calibration station | Physics | 15 | Active |
| US10877008B2 | Reference gas management in a breath alcohol calibration station | Physics | 14 | Active |
| US10604011B2 | Networked intoxication vehicle immobilization | Electricity | 12 | Active |
| US11047840B2 | Reference gas management in a breath alcohol calibration station | Physics | 10 | Active |
| US10919389B2 | Networked vehicle immobilization | Electricity | 9 | Active |
| US10596903B2 | Networked intoxication vehicle immobilization | Electricity | 8 | Active |
| US10948468B2 | Fault-tolerant breath alcohol calibration station and method | Physics | 5 | Active |
| US10877023B2 | Dual sensor types in breath alcohol detection | Performing Operations; Transporting | 5 | Active |
| US11971395B2 | Secure data handling in a breath alcohol calibration station | Physics | 3 | Active |
| US11415564B2 | Secure data handling in a breath alcohol calibration station | Physics | 3 | Active |
| US11338675B2 | Networked intoxication vehicle immobilization | Electricity | 1 | Active |
| US11789009B2 | Dual sensor types in breath alcohol detection | Performing Operations; Transporting | 1 | Active |
| US12241879B2 | Reference gas management in a breath alcohol calibration station | Physics | 1 | Active |
| US12203925B2 | Dual sensor types in intoxicant detection | Performing Operations; Transporting | 0 | Active |
| US12054044B2 | Networked intoxication vehicle immobilization | Electricity | 0 | Active |
| US12339263B2 | Detection device transfer system | Physics | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.