Inventor · disambiguated record
Karl-Heinz Kupfer
Also filed as: KUPFER KARL H · KUPFER KARL-HEINZ · KUPFER KARL-HEINZ O
11 granted patents·124 citations·filing 1980–1987
89Inventor score
Files withPHILIPS CORP11
Top patents by PatentIndex Score
11 records- 0178US4768962AFeed-through connector for RF signalsPHILIPS CORP·Filed 1987·Granted Sep 6, 1988·49 cites·7 claims
- 0266US4736457ACircuit arrangement for a tuner for changing over two frequency bandsPHILIPS CORP·Filed 1986·Granted Apr 5, 1988·24 cites·7 claims
- 0352US4573211ATwo-circuit resonant bandpass filter for television tunersPHILIPS CORP·Filed 1983·Granted Feb 25, 1986·11 cites·4 claims
- 0446US4756024ARF-input circuit arrangement for a television tunerPHILIPS CORP·Filed 1986·Granted Jul 5, 1988·10 cites·7 claims
- 0543US4710974ACircuit arrangement for a tuner for changing over several frequency rangesPHILIPS CORP·Filed 1986·Granted Dec 1, 1987·9 cites·8 claims
- 0641US4667167ACircuit for automatic gain controlPHILIPS CORP·Filed 1986·Granted May 19, 1987·6 cites·5 claims
- 0740US4369417ACircuit for tunable radio-frequency circuitsPHILIPS CORP·Filed 1980·Granted Jan 18, 1983·6 cites·3 claims
- 0837US4467393ATrimming capacitorPHILIPS CORP·Filed 1982·Granted Aug 21, 1984·5 cites·1 claims
- 0934US4796101AAutomatic FM sideband level control for video recordersPHILIPS CORP·Filed 1986·Granted Jan 3, 1989·4 cites·3 claims
- 1028US4803549ALow-pass filter for limiting the frequency band of a luminance signalPHILIPS CORP·Filed 1986·Granted Feb 7, 1989·0 cites·8 claims
- 1128US4525681ANarrow-band amplifier, more specifically television intermediate frequency amplifierPHILIPS CORP·Filed 1983·Granted Jun 25, 1985·0 cites·3 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →