Ma; Thomas T.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ma; Thomas T..The latest application filed is for "intake manifold system".
- Ma; Thomas T. - South Woodham Ferrers GB
- Ma; Thomas T. - Chelmsford GB2
| Patent | Date |
|---|---|
| Intake manifold system Grant 5,653,202 - Ma August 5, 1 | 1997-08-05 |
| Operation of an internal combustion engine Grant 5,609,021 - Ma March 11, 1 | 1997-03-11 |
| Operation of an internal combustion engine Grant 5,425,233 - Ma , et al. June 20, 1 | 1995-06-20 |
| Emission control Grant 5,180,559 - Ma January 19, 1 | 1993-01-19 |
| Phase change mechanism Grant 5,161,493 - Ma November 10, 1 | 1992-11-10 |
| Spark plug insulator structure Grant 5,128,583 - Ma July 7, 1 | 1992-07-07 |
| Variable camshaft phasing mechanism Grant 5,056,478 - Ma October 15, 1 | 1991-10-15 |
| Internal combustion engine and cam drive mechanism therefor Grant 4,577,598 - Ma March 25, 1 | 1986-03-25 |
| Ignition system Grant 4,494,508 - Ma January 22, 1 | 1985-01-22 |
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