Norbert Landgraf
4Patents
4h-index
12Co-inventors
47Inventor score
Filing activity: Jan 22, 1988 → Sep 17, 1997
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4812296A | Process utilizing catalytic material for the reduction of nitrous oxides | Emerging Cross-Sectional Technologies | 38 | Expired |
| US5045516A | Process for producing a catalyst for reducing nitrogen oxides in flue gases | Performing Operations; Transporting | 15 | Expired |
| US5225390A | Catalyst for reducing nitrogen oxides | Performing Operations; Transporting | 11 | Expired |
| US5945372A | Catalyst for reacting organic compounds present in a gas mixture | Performing Operations; Transporting | 9 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.