Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7500493 | Tuning slide valve for intake manifold | Erich Vorenkamp, James John Kempf, Richard V. Rich | 2009-03-10 |
| 7041146 | Pre-filters for engine air cleaning systems | Neville Jimmy Bugli, Jeffry M. Leffel | 2006-05-09 |
| 6913001 | Hydrocarbon adsorbing device for adsorbing backflow of hydrocarbons from a vehicle engine | Reza Abdolhosseini | 2005-07-05 |
| 6835234 | Intake tube assembly with evaporative emission control device | Jeffry M. Leffel, David S. Moyer | 2004-12-28 |
| 6758885 | Screened carbon trap protection | Jeffry M. Leffel, Neville Jimmy Bugli, Joseph Bova | 2004-07-06 |
| 6736115 | Air induction system comprising thermal pump for hydrocarbon vapor control | Jeffry M. Leffel | 2004-05-18 |
| 6736871 | Integrated filter screen and hydrocarbon adsorber | Jeffry M. Leffel, Christopher K. Roosen | 2004-05-18 |
| 6692554 | Methane storage device | Jeffry M. Leffel, Neville Jimmy Bugli | 2004-02-17 |
| 5924410 | Evaporative emission canister for an automotive vehicle | James T. Dumas, Philip Johnson, Roger Khami | 1999-07-20 |