Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Berendsen — 1 Patent

ATAT&T: 1 patents #10,636 of 18,772Top 60%
Glendale, WI: #137 of 246 inventorsTop 60%
Wisconsin: #23,997 of 40,088 inventorsTop 60%
Overall (All Time): #2,406,284 of 4,157,543Top 60%
1 Patents All Time
David Berendsen has been granted 1 US patent while listed as an inventor at AT&T. All of these patents were granted in 2009. David Berendsen ranks #2,406,284 of 4,157,543 US inventors in our database (top 57.9%). Patent records list David Berendsen in Glendale, WI, US.

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7577245 Method of detecting misrouted inter-office transport facility routes in a telecommunications system Frederick Armanino, Tomoko Convis, Raghvendra Savoor, James E. Hoffmann, Jerold Osato +3 more 2009-08-18 $46,074,000