Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
JD

John W. Duffell — 2 Patents in 2021

IBM: 2 patents #3,096 of 11,638Top 30%
Winchester, GB: #18 of 117 inventorsTop 20%
Overall (2021): #147,710 of 548,734Top 30%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11106626 Managing changes to one or more files via linked mapping records Peter John Cullen, Sam Marland, Yue Wang 2021-08-31 $6,618,000
10929603 Context-based text auto completion David R. Bell, Peter John Cullen, Darren J. Sullivan 2021-02-23 $3,028,000