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Richard W. Ulmer

Motorola: 15 patents #501 of 12,470Top 5%
VT Vlsi Technology: 7 patents #71 of 594Top 15%
AT Acoustic Technologies: 1 patents #10 of 19Top 55%
🗺 Texas: #5,702 of 125,132 inventorsTop 5%
Overall (All Time): #186,773 of 4,157,543Top 5%
23
Patents All Time

Issued Patents All Time

Showing 1–23 of 23 patents

Patent #TitleCo-InventorsDate
6282129 Memory devices and memory reading methods Elie Khoury 2001-08-28
6252967 Reducing acoustic feedback with digital modulation Kendall G. Moore, Samuel L. Thomasson 2001-06-26
6232801 Comparators and comparison methods Elie Khoury 2001-05-15
5854563 Process control monitoring system and method therefor Sung-Hun Oh 1998-12-29
5249214 Low skew CMOS clock divider James E. Ward 1993-09-28
5223751 Logic level shifter for 3 volt CMOS to 5 volt CMOS or TTL Laura E. Simmons, James E. Ward 1993-06-29
5065042 Self-configuring clock interface circuit Joseph A. Thomsen 1991-11-12
4956618 Start-up circuit for low power MOS crystal oscillator 1990-09-11
4659944 High voltage detection circuit James A. Miller, Robert N. Allgood 1987-04-21
4612497 MOS current limiting output circuit 1986-09-16
4584491 TTL to CMOS input buffer circuit for minimizing power consumption 1986-04-22
4544854 Analog switch structure having low leakage current James A. McKenzie 1985-10-01
4477737 Voltage generator circuit having compensation for process and temperature variation Roger A. Whatley 1984-10-16
4472647 Circuit for interfacing with both TTL and CMOS voltage levels Robert N. Allgood, Stephen H. Kelley 1984-09-18
4385245 MOS Power-on reset circuit 1983-05-24
4384276 Capacitive DAC to filter interface circuit Stephen H. Kelley 1983-05-17
4383223 CMOS Operational amplifier employing push-pull output stage 1983-05-10
4375595 Switched capacitor temperature independent bandgap reference Roger A. Whatley 1983-03-01
4370632 Multiple function operational amplifier circuit Robert N. Allgood, Stephen H. Kelley, Henry Wurzburg 1983-01-25
4355285 Auto-zeroing operational amplifier circuit Stephen H. Kelley, Roger A. Whatley 1982-10-19
4311988 Programmable A-law and .mu.-law DAC Stephen H. Kelley 1982-01-19
4278929 Regulated negative voltage supply Robert D. Lee 1981-07-14
4191898 High voltage CMOS circuit 1980-03-04