Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11898512 | Methods and system for engine cold starting | Xiaogang Zhang, Steven Wooldridge, David Bruce Reiche | 2024-02-13 |
| 11473518 | Methods for reducing cold start emissions for engines | Xiaogang Zhang, Steven Wooldridge, Peter C. Moilanen, Brad Alan VanDerWege, Jennifer Fischer | 2022-10-18 |
| 10550783 | Method and system for engine cold-start | Steven Wooldridge, Gopichandra Surnilla | 2020-02-04 |
| 10107219 | Method and system for engine cold-start | Steven Wooldridge, Gopichandra Surnilla | 2018-10-23 |
| 10087860 | Engine cold-start control | Gopichandra Surnilla, Jianwen James Yi, Steven Wooldridge, Alexander O'Connor Gibson, Foo Chern Ting | 2018-10-02 |
| 9410521 | Fuel injector spray pattern | Jianwen James Yi, Claudia Olivia Iyer, Steven Wooldridge, David Bruce Reiche, Brad Alan VanDerWege | 2016-08-09 |