Inventor · disambiguated record
Erwin J. Wittmann
Also filed as: SHANLEY ROBERT L II · WITTMANN ERWIN · WITTMANN ERWIN J · WITTMANN ERWIN JOHANN
17 granted patents·184 citations·filing 1974–1986
94Inventor score
Top patents by PatentIndex Score
17 records- 0184US4253110AAutomatic kinescope beam current limiter with sequential control modesRCA CORP·Filed 1979·Granted Feb 24, 1981·32 cites·16 claims
- 0275US4263610AControlled output composite keying signal generator for a television receiverRCA CORP·Filed 1980·Granted Apr 21, 1981·23 cites·10 claims
- 0374US4058390AAmine salts of phenyl-4-hydroxypyridazines and the preparation and herbicidal compositions thereofCHEMIE LINZ AG·Filed 1975·Granted Nov 15, 1977·8 cites·16 claims
- 0470US4385311AFilter and phase shift circuit for a television automatic flesh color correction systemRCA CORP·Filed 1981·Granted May 24, 1983·20 cites·15 claims
- 0569US4143398AAutomatic brightness control circuit employing a closed control loop stabilized against disruption by large amplitude video signalsRCA CORP·Filed 1978·Granted Mar 6, 1979·16 cites·15 claims
- 0657US4256482AHerbicidal compositionCHEMIE LINZ AG·Filed 1979·Granted Mar 17, 1981·4 cites·6 claims
- 0754US4722066ADigital signal overflow correction apparatusRCA CORP·Filed 1985·Granted Jan 26, 1988·21 cites·9 claims
- 0852US4229759ASignal detector including sample and hold circuit with reduced offset errorRCA CORP·Filed 1978·Granted Oct 21, 1980·8 cites·13 claims
- 0949US4325076AElectronic filter for generating a third harmonic signalRCA CORP·Filed 1980·Granted Apr 13, 1982·9 cites·5 claims
- 1048US4203131APredictable automatic brightness control circuit in a video signal image reproducing systemRCA CORP·Filed 1979·Granted May 13, 1980·7 cites·13 claims
- 1148US4054905AAutomatic chrominance gain control systemRCA CORP·Filed 1976·Granted Oct 18, 1977·7 cites·8 claims
- 1245US4249199APhase compensated controlled oscillatorRCA CORP·Filed 1979·Granted Feb 3, 1981·6 cites·8 claims
- 1340US4739503ACarry/borrow propagate adder/subtractorRCA CORP·Filed 1986·Granted Apr 19, 1988·10 cites·5 claims
- 1438US4485353APLL Oscillator synchronizing system with matrix for phase correctionRCA CORP·Filed 1982·Granted Nov 27, 1984·6 cites·6 claims
- 1537US4019152ABias circuit for junction diodesRCA CORP·Filed 1975·Granted Apr 19, 1977·3 cites·10 claims
- 1637US3970948AController gain signal amplifierRCA CORP·Filed 1974·Granted Jul 20, 1976·2 cites·8 claims
- 1731US4318051ASymmetrically gain controlled differential amplifierRCA CORP·Filed 1980·Granted Mar 2, 1982·2 cites·10 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →