Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Robert W. Redlich — 28 Patents

SUSunpower: 13 patents #51 of 453Top 15%
DIDataq Instruments: 1 patents #5 of 15Top 35%
TSThe Government Of The United States: 1 patents #1 of 43Top 3%
Athens, OH: #5 of 190 inventorsTop 3%
Ohio: #2,007 of 73,341 inventorsTop 3%
Overall (All Time): #134,628 of 4,157,543Top 4%
28 Patents All Time
Robert W. Redlich has been granted 28 US patents while listed as an inventor at Sunpower. The first was granted in 1983 and the most recent in October 2007. Robert W. Redlich ranks #134,628 of 4,157,543 US inventors in our database (top 3.2%). Patent records list Robert W. Redlich in Athens, OH, US.

Issued Patents All Time

Showing 1–25 of 28 patents

Patent #TitleCo-InventorsDate
7281383 Reciprocating four-stroke Brayton refrigerator or heat engine 2007-10-16
6495996 Linear motor control with triac and phase locked loop 2002-12-17
6483207 Auto-centering linear motor 2002-11-19
6266968 Multiple evaporator refrigerator with expansion valve 2001-07-31
6260368 Evaporator superheat stabilizer 2001-07-17
6118235 Circuits for controlling reciprocation amplitude of a linear motor 2000-09-12
5967488 Electrically actuated reed valve 1999-10-19
5753985 Electric motor with oscillating rotary output and controlled amplitude 1998-05-19
5592073 Triac control circuit 1997-01-07
5496153 Method and apparatus for measuring piston position in a free piston compressor 1996-03-05
5450521 Pulse width modulator 1995-09-12
5342176 Method and apparatus for measuring piston position in a free piston compressor 1994-08-30
5156005 Control of stirling cooler displacement by pulse width modulation of drive motor voltage 1992-10-20
5153587 Monitor for instrument landing system 1992-10-06
5148066 Linear generator or motor with integral magnetic spring William T. Beale 1992-09-15
5068607 Electrical linear position transducer with silicon steel foil shield surrounding transducer coil Douglas Bliss 1991-11-26
4926123 Precision variable pitch compensation winding for displacement transducer 1990-05-15
4912409 Actuator displacement transducer having external flux excluding tube Christopher G. Scheck 1990-03-27
4907005 Radiofrequency power distributor for instrument landing system localizer antenna arrays 1990-03-06
4866378 Displacement transducer with opposed coils for improved linearity and temperature compensation 1989-09-12
4864232 Temperature compensation for displacement transducer 1989-09-05
4667158 Linear position transducer and signal processor 1987-05-19
4649283 Multi-phase linear alternator driven by free-piston Stirling engine David M. Berchowitz 1987-03-10
4642547 Adaptive regulation system for a linear alternator driven by a free-piston stirling engine 1987-02-10
4605930 Integral monitor for ILS localizer 1986-08-12