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USPTO Patent Rankings Data through Dec 31, 2025
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John Appleton — 3 Patents

Siemens Aktiengesellschaft: 2 patents #6,658 of 22,248Top 30%
Muskegon, MI: #90 of 391 inventorsTop 25%
Michigan: #27,426 of 86,293 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
John Appleton has been granted 3 US patents while listed as an inventor at Siemens Aktiengesellschaft. The first was granted in 1981 and the most recent in April 2004. John Appleton ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list John Appleton in Muskegon, MI, US.

Patents per Year

Patents granted per year, 1981 to 2004Bar chart with a peak of 1 patents in 1981.peak 11981: 1 patents19812003: 1 patents20032004: 1 patents2004

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
6716000 Fuel pump delivery unit Simon Mark Browning 2004-04-06 $209,000
6551509 Feed unit and fuel filter for feeding fuel 2003-04-22 $206,000
4279577 Alternating piston rotary engine with latching control mechanism and lost motion connection 1981-07-21