Inventor · disambiguated record
Norbert Landgraf
Also filed as: LANDGRAF NORBERT
4 granted patents·1 pending application·150 citations·filing 1988–2005
81Inventor score
Files withSIEMENS AG5
Top patents by PatentIndex Score
5 records- 0187US4812296AProcess utilizing catalytic material for the reduction of nitrous oxidesSIEMENS AG·Filed 1988·Granted Mar 14, 1989·70 cites·8 claims
- 0277US5045516AProcess for producing a catalyst for reducing nitrogen oxides in flue gasesSIEMENS AG·Filed 1989·Granted Sep 3, 1991·36 cites·9 claims
- 0363US5225390ACatalyst for reducing nitrogen oxidesSIEMENS AG·Filed 1991·Granted Jul 6, 1993·24 cites·10 claims
- 0458US5945372ACatalyst for reacting organic compounds present in a gas mixtureSIEMENS AG·Filed 1997·Granted Aug 31, 1999·20 cites·9 claims
- 0541US2008003478A1High Temperature Solid Electrolyte Fuel Cell and Fuel Cell Installation Built with Said Fuel CellSIEMENS AG·Filed 2005·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →