Walter Boegner
19Patents
13h-index
44Co-inventors
74Inventor score
Filing activity: Jun 9, 1994 → Jun 16, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5771686A | Method and apparatus for operating a diesel engine | Emerging Cross-Sectional Technologies | 109 | Expired |
| US6170259A | Emission control system for an internal-combustion engine | Mechanical Engineering; Lighting; Heating | 86 | Expired |
| US5921076A | Process and apparatus for reducing nitrogen oxides in engine emissions | Emerging Cross-Sectional Technologies | 71 | Expired |
| US5910097A | Internal combustion engine exhaust emission control system with adsorbers for nitrogen oxides | Mechanical Engineering; Lighting; Heating | 53 | Expired |
| US5586433A | Process and apparatus for selective catalyzed no-reduction in oxygen-containing exhaust gases | Emerging Cross-Sectional Technologies | 39 | Expired |
| US6082100A | Method for operating a multicylinder internal combustion engine | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6161377A | Internal-combustion engine system having a nitrogen oxide storage catalyst and an operating process therefor | Mechanical Engineering; Lighting; Heating | 26 | Expired |
| US6119450A | Process and system for purifying exhaust gases of an internal-combustion engine | Mechanical Engineering; Lighting; Heating | 24 | Expired |
| US5457958A | Method and apparatus for reducing nitrogen oxides in the exhaust gas of an internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6696389B1 | Process and apparatus for cleaning a gas flow | Emerging Cross-Sectional Technologies | 19 | Expired |
| US5965098A | Methods and devices for scrubbing gases | Mechanical Engineering; Lighting; Heating | 17 | Expired |
| US6637189B1 | Method for the periodically desulfating a nitrogen oxide or sulfur oxide accumulator of an exhaust gas cleaning system | Mechanical Engineering; Lighting; Heating | 16 | Expired |
| US6408620B1 | Exhaust-gas cleaning system with nitrogen oxide accumulator catalyst and sulphur oxide trap and operating method therefor | Emerging Cross-Sectional Technologies | 15 | Expired |
| US6318073A | Process and system for purifying exhaust gases of an internal-combustion engine | Mechanical Engineering; Lighting; Heating | 9 | Expired |
| US6574955B2 | Method and apparatus for desulfurizing a nitrogen oxide adsorber | Performing Operations; Transporting | 7 | Expired |
| US6872365B1 | Exhaust gas cleaning system having internal ammonia production for reducing nitrogen oxides | Emerging Cross-Sectional Technologies | 6 | Expired |
| US5851501A | Process for absorbing and desorbing nitrogen oxides in exhaust gases | Mechanical Engineering; Lighting; Heating | 4 | Expired |
| US6168764A | Method and catalyst for reducing pollutants in gases | Emerging Cross-Sectional Technologies | 1 | Expired |
| US8474246B2 | Method of operating a particle filter in the exhaust system of a motor vehicle's internal combustion engine | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.