Inventor · disambiguated record
Dietrich Sprengel
Also filed as: SPRENGEL DIETRICH
5 granted patents·71 citations·filing 1979–1996
81Inventor score
Files withVARTA BATTERIE5
Top patents by PatentIndex Score
5 records- 0156US5660944AMulticell storage batteryVARTA BATTERIE·Filed 1995·Granted Aug 26, 1997·30 cites·16 claims
- 0251US4246326AMulti-layer auxiliary electrodeVARTA BATTERIE·Filed 1979·Granted Jan 20, 1981·13 cites·6 claims
- 0349US4735874AProcess for producing a gas-tight, sealed alkaline batteryVARTA BATTERIE·Filed 1986·Granted Apr 5, 1988·9 cites·14 claims
- 0449US4643959AProcess for producing a gas-tight, sealed alkaline batteryVARTA BATTERIE·Filed 1985·Granted Feb 17, 1987·9 cites·11 claims
- 0532US5786108AElectrochemical cellVARTA BATTERIE·Filed 1996·Granted Jul 28, 1998·10 cites·13 claims
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