Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6200819 | Method and apparatus for providing diluent gas to exhaust emission analyzer | Allen F. Dageforde | 2001-03-13 |
| 5756360 | Method and apparatus for providing diluted gas to exhaust emission analyzer | Allen F. Dageforde | 1998-05-26 |