Inventor · disambiguated record
Siegfried Gruhl
Also filed as: GRUHL SIEGFRIED
4 granted patents·30 citations·filing 1974–1991
74Inventor score
Files withBAYER AG4
Top patents by PatentIndex Score
4 records- 0143US3950183AProduction of annealed pigmentsBAYER AG·Filed 1974·Granted Apr 13, 1976·5 cites·4 claims
- 0238US5173466ACatalyst for the reduction of nitrogen oxides from waste gases and a process for its productionBAYER AG·Filed 1991·Granted Dec 22, 1992·9 cites·7 claims
- 0337US4992404ACarbon-based catalyst useful in gas-solid reactionsBAYER AG·Filed 1990·Granted Feb 12, 1991·10 cites·7 claims
- 0436US4910005AProcess for the reduction of nitrogen oxides from exhaust gasesBAYER AG·Filed 1989·Granted Mar 20, 1990·6 cites·8 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →