George H. Studtmann has been granted 10 US patents while listed as an inventor at Borgwarner . The first was granted in 1981 and the most recent in June 1993. George H. Studtmann ranks #481,000 of 4,157,543 US inventors in our database (top 11.6%). Patent records list George H. Studtmann in Mount Prospect, IL, US.
Patents per Year Patents granted per year, 1981 to 1993 Bar chart with a peak of 3 patents in 1992. peak 3 1981: 1 patents 1981 1984: 1 patents 1984 1985: 2 patents 1985 1990: 1 patents 1990 1991: 1 patents 1991 1992: 3 patents 1992 1993: 1 patents 1993
Issued Patents All Time
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Showing 1–10 of 10 patents
Patent # Title Co-Inventors Date Approx Value ⓘ
5216352 Solid state current controlled interruption system Donald H. Ward 1993-06-01
5170310 Fail-resistant solid state interruption system Donald H. Ward , James V. Fixemer , Julius Michael Liptak 1992-12-08
5110087 Variable force solenoid hydraulic control valve James R. Ward , Terry L. Forbes 1992-05-05
5106053 Solenoid operated hydraulic control valve Alan L. Miller , Todd L. King , Kenneth R. Gallaher , Jerome J. Zawada , William P. Umlauf 1992-04-21
4988967 Solenoid operated hydraulic control valve Alan L. Miller , Todd L. King , Kenneth R. Gallaher , Jerome J. Zawada , William P. Umlauf 1991-01-29
4949215 Driver for high speed solenoid actuator Stanley B. Quinn, Jr. , Todd L. King 1990-08-14
4511834 Control and stabilizing system for damperless synchronous motor — 1985-04-16
$3,654,000
4511835 Voltage-controlled, inverter-motor system — 1985-04-16
$3,654,000
4488101 Starting system for chopper controlled motor-commutated thyristor inverter — 1984-12-11
$14,996,000
4291368 Pulse-width modulated inverter system and method Raymond J. Yarema 1981-09-22
$2,631,000