Inventor · disambiguated record
Friedhelm Doll
Also filed as: DOLL FRIEDHELM
7 granted patents·108 citations·filing 1978–1997
86Inventor score
Top patents by PatentIndex Score
7 records- 0182US4554828AMeasuring device for the magneto-inductive measuring of the flow rate of a liquid mediumTURBO WERK MESSTECHNIK GMBH·Filed 1983·Granted Nov 26, 1985·39 cites·8 claims
- 0264US4157035AInductive flow meterDOLL FRIEDHELM·Filed 1978·Granted Jun 5, 1979·23 cites·13 claims
- 0353US5018391AInductive flow meterTURBO WERK MESSTECHNIK GMBH·Filed 1990·Granted May 28, 1991·16 cites·17 claims
- 0445US5641914AInductive flow meterFiled 1996·Granted Jun 24, 1997·13 cites·12 claims
- 0539US4733191ACircuit for changing a periodic intelligence signal into a direct-current signalTURBO WERK MESSTECHNIK GMBH·Filed 1986·Granted Mar 22, 1988·8 cites·9 claims
- 0634US5808208AInductive flow meterAMJ EQUIPMENT CORP·Filed 1997·Granted Sep 15, 1998·6 cites·12 claims
- 0729US5400660AInductive flow meterTURBO WERK MESSTECHNIK GMBH·Filed 1993·Granted Mar 28, 1995·3 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →