Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446492 | Method and system for aggressive cycling of leak detection pump to ascertain vapor leak size | Craig Andrew Weldon, John E. Cook | 2002-09-10 |
| 6363921 | Vacuum leak verification system and method | John E. Cook, Craig Andrew Weldon | 2002-04-02 |
| 6330878 | Evaporative emission leak detection system including vacuum regulator with sensitive seal | Paul D. Perry | 2001-12-18 |
| 6282945 | Method and system for aggressive cycling of leak detection pump to ascertain vapor leak size | Craig Andrew Weldon, John E. Cook | 2001-09-04 |