Inventor · disambiguated record
Josef Fenk
Also filed as: FENK JOSEF
34 granted patents·347 citations·filing 1977–2005
97Inventor score
Top patents by PatentIndex Score
34 records- 0185US4479259ATransistor oscillator circuitSIEMENS AG·Filed 1981·Granted Oct 23, 1984·42 cites·11 claims
- 0283US6521978B2Shielding device and electrical structural part having a shielding deviceINFINEON TECHNOLOGIES AG·Filed 2001·Granted Feb 18, 2003·38 cites·30 claims
- 0382US6897796B2Sigma-delta converter arrangementINFINEON TECHNOLOGIES AG·Filed 2004·Granted May 24, 2005·28 cites·19 claims
- 0476US4150344ATunable microwave oscillatorSIEMENS AG·Filed 1977·Granted Apr 17, 1979·17 cites·14 claims
- 0569US4965510AIntegrated semiconductor circuitSIEMENS AG·Filed 1989·Granted Oct 23, 1990·21 cites·1 claims
- 0668US4249262ATunable microwave oscillatorSIEMENS AG·Filed 1978·Granted Feb 3, 1981·13 cites·7 claims
- 0764US5604460AAmplifier array and receiver circuit that includes the amplifier arraySIEMENS AG·Filed 1995·Granted Feb 18, 1997·26 cites·13 claims
- 0863US4621238ADifferential amplifier circuit having controllable gainSIEMENS AG·Filed 1985·Granted Nov 4, 1986·15 cites·14 claims
- 0963US4577336AIntegrable frequency divider circuit having a feedback controlled differential amplifier as its preamplifier circuitSIEMENS AG·Filed 1985·Granted Mar 18, 1986·14 cites·8 claims
- 1061US7349724B2Radio frequency arrangement and production method and also useINFINEON TECHNOLOGIES AG·Filed 2005·Granted Mar 25, 2008·2 cites·20 claims
- 1156US7183841B2Power amplifier arrangement, and a method for amplification of a signalINFINEON TECHNOLOGIES AG·Filed 2005·Granted Feb 27, 2007·3 cites·21 claims
- 1256US4277756AAmplifier circuit arrangement for aperiodic signalsSIEMENS AG·Filed 1979·Granted Jul 7, 1981·8 cites·2 claims
- 1354US4314152AMonolithically integrable semiconductor circuit with an amplifier controlled by a photo diodeSIEMENS AG·Filed 1980·Granted Feb 2, 1982·8 cites·10 claims
- 1451US6486732B2Modulator-demodulatorINFINEON TECHNOLOGIES AG·Filed 2002·Granted Nov 26, 2002·2 cites·8 claims
- 1549US4847567AMonolithically integrable, amplitude-controllable oscillator amplifier circuitSIEMENS AG·Filed 1988·Granted Jul 11, 1989·9 cites·20 claims
- 1649US4565978AIntegrable oscillator circuitSIEMENS AG·Filed 1984·Granted Jan 21, 1986·9 cites·15 claims
- 1747US5144263AMethod for amplitude control of an oscillator output signal, and circuit configuration for performing the methodSIEMENS AG·Filed 1991·Granted Sep 1, 1992·12 cites·10 claims
- 1847US4369410AMonolithically integrable transistor amplifier having gain control meansSIEMENS AG·Filed 1980·Granted Jan 18, 1983·6 cites·6 claims
- 1946US4843348AMonolithically integrable, amplitude-controllable oscillator amplifier circuitSIEMENS AG·Filed 1988·Granted Jun 27, 1989·8 cites·14 claims
- 2045US7551890B2Method for reducing the radiation load by a mobile radio terminal with directional emission, and a mobile radio terminal with directional emissionINFINEON TECHNOLOGIES AG·Filed 2004·Granted Jun 23, 2009·4 cites·15 claims
- 2145US5337005AIntegrated frequency synthesizer circuit for transmit-and-receiver operationSIEMENS AG·Filed 1992·Granted Aug 9, 1994·15 cites·5 claims
- 2243US7495276B2Radio frequency arrangement, method for producing a radio frequency arrangement and use of the radio frequency arrangementINFINEON TECHNOLOGIES AG·Filed 2005·Granted Feb 24, 2009·0 cites·13 claims
- 2342US4635003AOscillator mixer circuit with reaction-tree couplingSIEMENS AG·Filed 1985·Granted Jan 6, 1987·7 cites·15 claims
- 2441US5459433ALow-noise amplifier with reversible amplification in a cascode circuitSIEMENS AG·Filed 1994·Granted Oct 17, 1995·8 cites·3 claims
- 2540US5198784AFrequency modulated oscillator having controllable current sourcesSIEMENS AG·Filed 1992·Granted Mar 30, 1993·8 cites·5 claims
- 2639US5652543AAmplifier array for high-frequency signals and multiplexer configuration including the amplifier arraySIEMENS AG·Filed 1995·Granted Jul 29, 1997·7 cites·8 claims
- 2737US7548732B2Power amplifier arrangement having two or more antenna coupling respective amplifiers to a supply potentialINFINEON TECHNOLOGIES AG·Filed 2005·Granted Jun 16, 2009·0 cites·19 claims
- 2837US4504794AIntegrable differential amplifierSIEMENS AG·Filed 1983·Granted Mar 12, 1985·4 cites·4 claims
- 2935US5115212AIntegrable variable-frequency oscillator circuitSIEMENS AG·Filed 1990·Granted May 19, 1992·5 cites·9 claims
- 3032US6091306ACircuit configuration with main and subordinate oscillatorsSIEMENS AG·Filed 1998·Granted Jul 18, 2000·2 cites·10 claims
- 3131US5382849ACircuit configuration for signal limitation and field intensity detectionSIEMENS AG·Filed 1992·Granted Jan 17, 1995·3 cites·8 claims
- 3230US6531904B1Circuit configurations having a delay device, a multiplier, filter and/or a master-slave flip-flop for generating: an output signal being orthogonal to an input signal, an output signal having a frequency being double that of an input signal, or two output signals being orthogonal to one anotherINFINEON TECHNOLOGIES AG·Filed 1996·Granted Mar 11, 2003·1 cites·2 claims
- 3330US4843340AMonolithically integrable controller circuitSIEMENS AG·Filed 1988·Granted Jun 27, 1989·1 cites·10 claims
- 3428US5566360ATransmitter/receiver configuration for higher frequenciesSIEMENS AG·Filed 1994·Granted Oct 15, 1996·1 cites·6 claims
Join the waitlist — get patent alerts
Get an alert when Josef Fenk files or is granted a new patent.
We store only your email — no account needed. See our privacy policy.
Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →