Hamburg; Douglas Ray
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hamburg; Douglas Ray.The latest application filed is for "active adaptive bias for closed loop air/fuel control system".
- Hamburg; Douglas Ray - Bloomfield Hills MI
| Patent | Date |
|---|---|
| Active adaptive bias for closed loop air/fuel control system Grant 6,604,357 - Bradley, Sr. , et al. August 12, 2 | 2003-08-12 |
| Active adaptive bias for closed loop air/fuel control system App 20020029560 - Bradley, John E. SR. ; et al. | 2002-03-14 |
| Three-way catalyst model for an engine air-to-fuel ratio control system Grant 6,336,084 - Omara , et al. January 1, 2 | 2002-01-01 |
| Air-fuel ratio feedback control Grant 6,253,542 - Omara , et al. July 3, 2 | 2001-07-03 |
| Engine control system with adaptive cold-start air/fuel ratio control Grant 6,161,531 - Hamburg , et al. December 19, 2 | 2000-12-19 |
| Sensor calibration for catalyst deterioration detection Grant 5,877,413 - Hamburg , et al. March 2, 1 | 1999-03-02 |
| Catalyst monitoring using a hydrocarbon sensor Grant 5,822,979 - Hamburg , et al. October 20, 1 | 1998-10-20 |
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