Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7942122 | Engine head cover assembly having an integrated oil separator and a removable cover | Tenghua Tom Shieh, Wei Liu | 2011-05-17 |
| 7730878 | Exhaust gas recirculation devices | Tenghua Tom Shieh, Manoj K. Sampath | 2010-06-08 |
| 7552722 | Exhaust gas recirculator devices | Teng-Hua Shieh, Manoj K. Sampath | 2009-06-30 |
| 7380545 | Oil drain device for an engine oil separator | Teng-Hua Shieh, Shohei Nomura | 2008-06-03 |