Inventor · disambiguated record
Dennis L. Welty
Also filed as: WELTY DENNIS L
13 granted patents·254 citations·filing 1981–1999
93Inventor score
Files withMOTOROLA INC13
Top patents by PatentIndex Score
13 records- 0179US4599494ARing sense telephone tone ringer circuitMOTOROLA INC·Filed 1984·Granted Jul 8, 1986·30 cites·13 claims
- 0277US5329585ASubscriber line interface circuit for controlling AC and DC output impedanceMOTOROLA INC·Filed 1992·Granted Jul 12, 1994·83 cites·10 claims
- 0367US5198957ATransient protection circuit using common drain field effect transistorsMOTOROLA INC·Filed 1990·Granted Mar 30, 1993·29 cites·17 claims
- 0467US4648103AFlip-flop having divide inhibit circuitry to change divide ratioMOTOROLA INC·Filed 1984·Granted Mar 3, 1987·14 cites·3 claims
- 0565US4431874ABalanced current multiplier circuit for a subscriber loop interface circuitMOTOROLA INC·Filed 1981·Granted Feb 14, 1984·15 cites·13 claims
- 0660US4720856AControl circuit having a direct current control loop for controlling the gain of an attenuatorMOTOROLA INC·Filed 1986·Granted Jan 19, 1988·19 cites·10 claims
- 0756US4491804ABias circuit which is independent of output device voltage characteristics for biasing an amplifier in class AB operationMOTOROLA INC·Filed 1982·Granted Jan 1, 1985·9 cites·24 claims
- 0856US4485341ACurrent limiter circuitMOTOROLA INC·Filed 1982·Granted Nov 27, 1984·11 cites·13 claims
- 0953US4724540ASpeakerphone with fast idle modeMOTOROLA INC·Filed 1986·Granted Feb 9, 1988·14 cites·25 claims
- 1049US6104227ARF mixer circuit and method of operationMOTOROLA INC·Filed 1999·Granted Aug 15, 2000·14 cites·19 claims
- 1145US6263199B1Circuit and method of signal frequency conversionMOTOROLA INC·Filed 1998·Granted Jul 17, 2001·10 cites·18 claims
- 1237US4994758AAlpha enhancement of a transistor using base current feedback to the emitterMOTOROLA INC·Filed 1989·Granted Feb 19, 1991·4 cites·21 claims
- 1331US4689506AControl circuit for use with electronic attenuators and method for providing a control signal proportional to absolute temperatureMOTOROLA INC·Filed 1985·Granted Aug 25, 1987·2 cites·12 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →