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

David L. Li — 1 Patent in 2021

Canon: 1 patents #1,677 of 3,943Top 45%
Fullerton, CA: #21 of 76 inventorsTop 30%
California: #26,007 of 66,859 inventorsTop 40%
Overall (2021): #482,622 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11119397 Diagnostic camera apparatus and method for inspection of an enclosed tube system Alan-James Speed, Ray Dawson, Ralph McCann, Makoto Ogusu, James Pulverenti +1 more 2021-09-14 $52,000