Inventor · disambiguated record
Johann Doppelberger
Also filed as: DOPPELBERGER JOHANN
3 granted patents·99 citations·filing 1988–2004
74Inventor score
Top patents by PatentIndex Score
3 records- 0189US4902570AProcess for preparing highly dispersed metal oxides whose surfaces are modified by an ammonium-functional organopolysiloxane as a positive chargeable controlling agent for tonersWACKER CHEMIE GMBH·Filed 1988·Granted Feb 20, 1990·55 cites·17 claims
- 0275US5851604AInterference pigments comprising molecules fixed in a cholesteric configuration, and use thereofCONSORTIUM ELEKTROCHEM IND·Filed 1995·Granted Dec 22, 1998·40 cites·7 claims
- 0351US7901502B2Dispersion which contains at least 2 types of particlesWACKER CHEMIE AG·Filed 2004·Granted Mar 8, 2011·4 cites·16 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →