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USPTO Patent Rankings Data through Dec 31, 2025
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John Tree — 2 Patents

RORoli: 2 patents #5 of 14Top 40%
London, GB: #3,763 of 11,041 inventorsTop 35%
Overall (All Time): #1,709,992 of 4,157,543Top 45%
2 Patents All Time
John Tree has been granted 2 US patents while listed as an inventor at Roli. All of these patents were granted in 2018. John Tree ranks #1,709,992 of 4,157,543 US inventors in our database (top 41.1%). Patent records list John Tree in London, GB.

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D810185 Keyboard instrument Hong-Yeul Eom, Stephen Hempton, Tien-sheng Huang, Heegun Koo, Roland Lamb +2 more 2018-02-13
D809588 Keyboard instrument Hong-Yeul Eom, Stephen Hempton, Tien-sheng Huang, Heegun Koo, Roland Lamb +2 more 2018-02-06

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