Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David Schaefers — 3 Patents

SPSbc Properties: 1 patents #124 of 280Top 45%
SRSbc Technology Resources: 1 patents #125 of 200Top 65%
ATAT&T: 1 patents #10,636 of 18,772Top 60%
Aurora, IL: #320 of 1,049 inventorsTop 35%
Illinois: #26,899 of 84,256 inventorsTop 35%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
David Schaefers has been granted 3 US patents while listed as an inventor at AT&T. The first was granted in 2004 and the most recent in May 2011. David Schaefers ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list David Schaefers in Aurora, IL, US.

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
7940677 Architecture for optical metro ethernet service level agreement (SLA) management Bruce Schine, Gerald P. Agnew, Christopher Kallaos, Sujay Kumar Mereddy, Paul A. Tomalenas +1 more 2011-05-10 $15,508,000
7286656 Method and system for displaying customer information D. Alexis Castro, Kurt Ensminger, Holly Fisher, Mimi Gizoni, Carolyn M. Jones +12 more 2007-10-23
6823053 Method and system for displaying customer information D. Alexis Castro, Kurt Ensminger, Holly Fisher, Mimi Gizoni, Carolyn M. Jones +12 more 2004-11-23