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USPTO Patent Rankings Data through Dec 31, 2025
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John G. Willis — 6 Patents

LDLinear Dynamics: 2 patents #1 of 8Top 15%
ExxonMobil: 2 patents #3,942 of 10,161Top 40%
Chelmsford, MA: #190 of 858 inventorsTop 25%
Massachusetts: #20,532 of 88,656 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
John G. Willis has been granted 6 US patents while listed as an inventor at Linear Dynamics. The first was granted in 1981 and the most recent in July 2004. John G. Willis ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list John G. Willis in Chelmsford, MA, US.

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
6768443 Switch capacitor circuit and applications thereof 2004-07-27
4968380 System for continuously replenishing melt Gary M. Freedman, Lawrence L. Perletz 1990-11-06
4617722 Method for electrically interconnecting solar cells 1986-10-21
4507707 Electro-pneumatic assembly device 1985-03-26
4445536 Electronic-pneumatic circuit board coupling 1984-05-01
4245815 Proportional solenoid valve and connector 1981-01-20