Lothar Hofmann
27Patents
15h-index
37Co-inventors
81Inventor score
Filing activity: Jul 1, 1985 → Nov 7, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5884475A | Method and device for introducing liquid into an exhaust-gas purification system | Emerging Cross-Sectional Technologies | 124 | Expired |
| US6539708B1 | Metering system | Emerging Cross-Sectional Technologies | 105 | Expired |
| US6444177B1 | Process and device for the catalytic cleaning of the exhaust gas from a combustion plant | Emerging Cross-Sectional Technologies | 81 | Expired |
| US6082102A | NO.sub.x reduction system with a device for metering reducing agents | Emerging Cross-Sectional Technologies | 54 | Expired |
| US6401449B1 | Expanded grid static mixer | Emerging Cross-Sectional Technologies | 48 | Expired |
| US6273120A | Device for introducing a liquid reducing agent into an exhaust gas purification system | Emerging Cross-Sectional Technologies | 48 | Expired |
| US5785937A | Method for the catalytic conversion of nitrogen oxides present in the exhaust gas of an internal-combustion engine | Emerging Cross-Sectional Technologies | 45 | Expired |
| US6223526A | Dual compartment fuel storage tank | Emerging Cross-Sectional Technologies | 36 | Expired |
| US5943858A | Premixing chamber for an exhaust gas purification system | Emerging Cross-Sectional Technologies | 34 | Expired |
| US6442932B1 | Method and device for the catalytic reduction of nitrogen oxides contained in the off-gas from a combustion system | Emerging Cross-Sectional Technologies | 33 | Expired |
| US6209313A | Method of reducing the Nox content in the exhaust gas of a diesel internal combustion engine | Emerging Cross-Sectional Technologies | 28 | Expired |
| US6620391B2 | Process for the catalytic cleaning of the exhaust gas from a combustion plant | Emerging Cross-Sectional Technologies | 27 | Expired |
| US6470676B2 | Method for the catalytic conversion of nitrogen oxides contained in the exhaust gas of an internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US5974789A | Method and device for decomposing nitrogen oxides in the exhaust gas of an internal combustion engine | Emerging Cross-Sectional Technologies | 22 | Expired |
| US6408619B1 | Method and device for reducing the nitrogen oxides in the exhaust gas of a combustion system | Emerging Cross-Sectional Technologies | 17 | Expired |
| US4676848A | Brass alloy | Mechanical Engineering; Lighting; Heating | 15 | Expired |
| US6553755B2 | Expanded grid static mixer | Emerging Cross-Sectional Technologies | 15 | Expired |
| US5605126A | Piston for internal combustion engines, especially diesel engines | Emerging Cross-Sectional Technologies | 12 | Expired |
| US7507684B2 | Extruded monolithic catalytic converter and manufacturing method | Performing Operations; Transporting | 12 | Active |
| US6475453B1 | Configuration for decomposing nitrogen oxides in a gas stream and method for using the configuration | Emerging Cross-Sectional Technologies | 11 | Expired |
| US6471927B2 | Process for converting urea into ammonia | Performing Operations; Transporting | 6 | Expired |
| US6737033B1 | Method and device for the catalytic removal of a pollutant contained in an exhaust gas of a combustion system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US6343468B1 | Method and device for controlling a combustion system and for catalytic cleaning of exhaust gas, and combustion system | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8136243B2 | Method for producing a piston for an internal combustion engine and the thus produced piston | Emerging Cross-Sectional Technologies | 1 | Active |
| US10137413B2 | Diesel oxidation catalyst having a capture region for sulfur containing impurities | Mechanical Engineering; Lighting; Heating | 1 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.