Hoekstra; Robert Louis
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hoekstra; Robert Louis.The latest application filed is for "hydrogen enriched natural gas as a motor fuel with variable air fuel ratio and fuel mixture ratio control".
- Hoekstra; Robert Louis - Oviedo FL
| Patent | Date |
|---|---|
| Hydrogen enriched natural gas as a motor fuel with variable air fuel ratio and fuel mixture ratio control Grant 5,787,864 - Collier, Jr. , et al. August 4, 1 | 1998-08-04 |
| Hydrogen enriched natural gas as a motor fuel with variable air fuel ratio and fuel mixture ratio control Grant 5,666,923 - Collier, Jr. , et al. September 16, 1 | 1997-09-16 |
| Hydrogen enriched natural gas as a clean motor fuel Grant 5,660,602 - Collier, Jr. , et al. August 26, 1 | 1997-08-26 |
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