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USPTO Patent Rankings Data through Dec 31, 2025
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E. Todd Cale — 3 Patents

SUSunpower: 3 patents #186 of 453Top 45%
Coolville, OH: #5 of 12 inventorsTop 45%
Ohio: #23,545 of 73,341 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
E. Todd Cale has been granted 3 US patents while listed as an inventor at Sunpower. The first was granted in 2004 and the most recent in December 2018. E. Todd Cale ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list E. Todd Cale in Coolville, OH, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
10156204 Attachment of cylinders in the housing of free-piston stirling machines John Stanley 2018-12-18 $4,726,000
7600464 Multi-piece piston for a free piston machine Aaron M. Courtney, Jerry A Royse 2009-10-13
6817221 Wound regenerator method 2004-11-16