Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6401528 | Analyzer of a vehicle's evaporative emissions | David K. Lambert, Dean A. Drake | 2002-06-11 |
| 5750886 | Engine emissions analyzer with diagnostic | David K. Lambert | 1998-05-12 |
| 5431042 | Engine emissions analyzer | David K. Lambert | 1995-07-11 |