Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6453859 | Multi-mode control system for variable camshaft timing devices | Frank R. Smith, Braman Wing, Mike Duffield | 2002-09-24 |
| 6374787 | Multi-position variable camshaft timing system actuated by engine oil pressure | Roger T. Simpson, Michael Duffield | 2002-04-23 |