Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9644559 | Systems and methods for improving engine emissions during starting | David R Pedro, Allen Lehmen, Marcus William Fried | 2017-05-09 |
| 9599052 | Methods and system for catalyst reactivation | Marc G. Uphues, Allen Lehmen | 2017-03-21 |