Inventor · disambiguated record
Richard W. Ulmer
Also filed as: ULMER RICHARD · ULMER RICHARD W · ULMER RICHARD WALTER
26 granted patents·1 pending application·841 citations·filing 1976–2006
97Inventor score
Top patents by PatentIndex Score
27 records- 0196US4139880ACMOS polarity reversal circuitMOTOROLA INC·Filed 1977·Granted Feb 13, 1979·84 cites·8 claims
- 0295US4472647ACircuit for interfacing with both TTL and CMOS voltage levelsMOTOROLA INC·Filed 1982·Granted Sep 18, 1984·68 cites·9 claims
- 0393US4956618AStart-up circuit for low power MOS crystal oscillatorVLSI TECHNOLOGY INC·Filed 1989·Granted Sep 11, 1990·91 cites·18 claims
- 0492US4612497AMOS current limiting output circuitMOTOROLA INC·Filed 1985·Granted Sep 16, 1986·87 cites·7 claims
- 0591US4477737AVoltage generator circuit having compensation for process and temperature variationMOTOROLA INC·Filed 1982·Granted Oct 16, 1984·61 cites·5 claims
- 0688US5223751ALogic level shifter for 3 volt cmos to 5 volt cmos or ttlVLSI TECHNOLOGY INC·Filed 1991·Granted Jun 29, 1993·54 cites·29 claims
- 0787US4659944AHigh voltage detection circuitMOTOROLA INC·Filed 1985·Granted Apr 21, 1987·39 cites·6 claims
- 0887US4584491ATTL to CMOS input buffer circuit for minimizing power consumptionMOTOROLA INC·Filed 1984·Granted Apr 22, 1986·31 cites·11 claims
- 0987US4544854AAnalog switch structure having low leakage currentMOTOROLA INC·Filed 1983·Granted Oct 1, 1985·31 cites·10 claims
- 1087US4375595ASwitched capacitor temperature independent bandgap referenceMOTOROLA INC·Filed 1981·Granted Mar 1, 1983·47 cites·7 claims
- 1179US4385245AMOS Power-on reset circuitMOTOROLA INC·Filed 1981·Granted May 24, 1983·22 cites·6 claims
- 1278US4191898AHigh voltage CMOS circuitMOTOROLA INC·Filed 1978·Granted Mar 4, 1980·21 cites·6 claims
- 1377US4048584AInput protection circuit for cmos oscillatorMOTOROLA INC·Filed 1976·Granted Sep 13, 1977·15 cites·8 claims
- 1474US4383223ACMOS Operational amplifier employing push-pull output stageMOTOROLA INC·Filed 1980·Granted May 10, 1983·17 cites·8 claims
- 1572US4355285AAuto-zeroing operational amplifier circuitMOTOROLA INC·Filed 1981·Granted Oct 19, 1982·15 cites·5 claims
- 1672US4311988AProgrammable A-law and μ-law DACMOTOROLA INC·Filed 1979·Granted Jan 19, 1982·16 cites·3 claims
- 1770US6282129B1Memory devices and memory reading methodsVLSI TECHNOLOGY INC·Filed 2000·Granted Aug 28, 2001·15 cites·17 claims
- 1868US4370632AMultiple function operational amplifier circuitMOTOROLA INC·Filed 1981·Granted Jan 25, 1983·15 cites·8 claims
- 1965US5065042ASelf-configuring clock interface circuitVLSI TECHNOLOGY INC·Filed 1990·Granted Nov 12, 1991·19 cites·15 claims
- 2063US4384276ACapacitive DAC to filter interface circuitMOTOROLA INC·Filed 1981·Granted May 17, 1983·15 cites·4 claims
- 2160US5249214ALow skew CMOS clock dividerVLSI TECHNOLOGY INC·Filed 1992·Granted Sep 28, 1993·15 cites·15 claims
- 2259US4143362AHigh resolution auto-zero circuit for analog-to-digital converterMOTOROLA INC·Filed 1977·Granted Mar 6, 1979·10 cites·7 claims
- 2358US6232801B1Comparators and comparison methodsVLSI TECHNOLOGY INC·Filed 1999·Granted May 15, 2001·15 cites·35 claims
- 2454US6252967B1Reducing acoustic feedback with digital modulationACOUSTIC TECH INC·Filed 1999·Granted Jun 26, 2001·25 cites·15 claims
- 2550US4278929ARegulated negative voltage supplyMOTOROLA INC·Filed 1979·Granted Jul 14, 1981·7 cites·10 claims
- 2648US2008043998A1Line interface for telephoneACOUSTIC TECH INC·Filed 2006·Application pending·0 cites
- 2736US5854563AProcess control monitoring system and method thereforVLSI TECHNOLOGY INC·Filed 1996·Granted Dec 29, 1998·6 cites·39 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →