Inventor · disambiguated record
Heinrich Krahn
Also filed as: KRAHN HEINRICH
3 granted patents·142 citations·filing 1976–1996
76Inventor score
Top patents by PatentIndex Score
3 records- 0177US5802910AMeasuring system for liquid volumes and liquid levels of any typeFiled 1996·Granted Sep 8, 1998·66 cites·8 claims
- 0270US4449266AToothbrush with two segments of bristlesNOERTHEMANN KARL HEINZ·Filed 1982·Granted May 22, 1984·47 cites·16 claims
- 0364US4131967AToothbrushNORTHEMANN KARL HEINZ·Filed 1976·Granted Jan 2, 1979·29 cites·2 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →