Holl; William H.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Holl; William H..The latest application filed is for "closed loop mass airflow determination via throttle position".
- Holl; William H. - Flint MI
| Patent | Date |
|---|---|
| Closed loop mass airflow determination via throttle position Grant 4,999,781 - Holl , et al. March 12, 1 | 1991-03-12 |
| Closed loop carburetor air-fuel ratio control apparatus Grant 4,034,730 - Ayres , et al. July 12, 1 | 1977-07-12 |
| Closed loop carburetor air-fuel ratio control Grant 3,982,517 - Fales , et al. September 28, 1 | 1976-09-28 |
| Exhaust Gas Recirculation System Grant 3,785,151 - Holl January 15, 1 | 1974-01-15 |
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