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USPTO Patent Rankings Data through Dec 31, 2025
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William T. Beale — 32 Patents

SUSunpower: 28 patents #11 of 453Top 3%
SYSynopsys: 1 patents #1,143 of 2,302Top 50%
Athens, OH: #2 of 190 inventorsTop 2%
Ohio: #1,603 of 73,341 inventorsTop 3%
Overall (All Time): #110,428 of 4,157,543Top 3%
32 Patents All Time
William T. Beale has been granted 32 US patents while listed as an inventor at Sunpower. The first was granted in 1980 and the most recent in June 2015. William T. Beale ranks #110,428 of 4,157,543 US inventors in our database (top 2.7%). Patent records list William T. Beale in Athens, OH, US.

Issued Patents All Time

Showing 1–25 of 32 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
9052002 Continuously variable transmission having speed control Timothy James Cyders 2015-06-09
8857173 Two piston, concentric cylinder, alpha free piston Stirling machine 2014-10-14 $10,192,000
8590300 Balanced multiple groupings of beta stirling machines James Gary Wood 2013-11-26 $37,854,000
7685818 Connection of a free-piston stirling machine and a load or prime mover permitting differing amplitudes of reciprocation 2010-03-30
7230506 Crosstalk reduction for a system of differential line pairs John T. Stonick, Jeffrey L. Sonntag 2007-06-12 $9,982,000
7011322 Automatic transmission with stepless, continuously variable speed and torque ratio 2006-03-14
6684637 Parallel slot heat exchanger 2004-02-03
RE38337 Centering system for free piston machine 2003-12-02
6170442 Free piston internal combustion engine 2001-01-09
6035637 Free-piston internal combustion engine William L. Kopko 2000-03-14
5873246 Centering system for free piston machine 1999-02-23
5775273 Free piston internal combustion engine 1998-07-07
5537820 Free piston end position limiter Nicholas van der Walt, Reuven Unger 1996-07-23
5525845 Fluid bearing with compliant linkage for centering reciprocating bodies Nicholas van der Walt, Reuven Unger 1996-06-11
5502968 Free piston stirling machine having a controllably switchable work transmitting linkage between displacer and piston 1996-04-02
5461859 Centering system with one way valve for free piston machine Neill Lane, Jarlath McEntee 1995-10-31
5385021 Free piston stirling machine having variable spring between displacer and piston for power control and stroke limiting 1995-01-31
5148066 Linear generator or motor with integral magnetic spring Robert W. Redlich 1992-09-15
4945726 Leaky gas spring valve for preventing piston overstroke in a free piston stirling engine 1990-08-07
4912929 Variable gas spring for matching power output from FPSE to load of refrigerant compressor Gong Chen 1990-04-03
4888951 Phase synchronization and vibration cancellation for free piston Stirling machines 1989-12-26
4888950 Magnetic driven hydrodynamic lubrication system for free piston stirling engine 1989-12-26
4805408 Stirling engine power regulation system David M. Berchowitz 1989-02-21
4802332 Sliding surface lubrication particularly advantageous for a free piston stirling engine 1989-02-07
4738105 Compact crank drive mechanism with guided pistons M. Andrew Ross 1988-04-19