Stephen Geyer
22Patents
7h-index
30Co-inventors
69Inventor score
Filing activity: Jun 9, 2000 → Jan 19, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6378515B1 | Exhaust gas recirculation apparatus and method | Emerging Cross-Sectional Technologies | 35 | Expired |
| US7163005B2 | Cooler bypass valve system and method | Mechanical Engineering; Lighting; Heating | 34 | Expired |
| US7945376B2 | Engine and method of maintaining engine exhaust temperature | Mechanical Engineering; Lighting; Heating | 23 | Active |
| US7007680B2 | Cooler bypass valve system and method | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US8567191B2 | Methods and systems for controlling transient engine response | Emerging Cross-Sectional Technologies | 19 | Active |
| US8191369B2 | Turbo-charger surge detection | Emerging Cross-Sectional Technologies | 11 | Active |
| US8903632B2 | Methods and systems for exhaust gas recirculation cooler regeneration | Emerging Cross-Sectional Technologies | 7 | Active |
| US7357538B2 | Method and apparatus for providing light | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| US7084378B2 | Mass-flow sensor heating element protection method and apparatus | Physics | 4 | Expired |
| US8572951B2 | System and method for regenerating a particulate filter | Emerging Cross-Sectional Technologies | 4 | Active |
| US7481557B2 | Method and apparatus for reflecting light | Mechanical Engineering; Lighting; Heating | 3 | Expired |
| US11655948B2 | Linear modular luminaire | Mechanical Engineering; Lighting; Heating | 2 | Active |
| US8813479B2 | Emissions control diagnostic method and system | Emerging Cross-Sectional Technologies | 2 | Active |
| US9238468B2 | Systems and methods for controlling exhaust flow through an aftertreatment device | Emerging Cross-Sectional Technologies | 1 | Active |
| US7398773B2 | EGR recovery system and method | Emerging Cross-Sectional Technologies | 1 | Expired |
| US10941660B2 | Opposed piston engine with offset inlet and exhaust crankshafts | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US11028758B2 | Exhaust after-treatment system with adjustable flow path, and method for operating such an exhaust after-treatment system | Emerging Cross-Sectional Technologies | 0 | Active |
| US11053835B2 | Method and system for assessing engine faults | Emerging Cross-Sectional Technologies | 0 | Active |
| US10145283B2 | Diesel engine system and method and apparatus for handling diesel engine exhaust | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US10683782B2 | Two stroke, opposed piston engine with compression release brake arrangement and method | Mechanical Engineering; Lighting; Heating | 0 | Active |
| US8240134B2 | Engine with exhaust cooling and method | Emerging Cross-Sectional Technologies | 0 | Active |
| US10738720B2 | Method for controlling an air boosting apparatus in a two-stroke, opposed piston engine, and a two-stroke, opposed piston engine with an air boosting apparatus | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.