Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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David K. Lambert — 5 Patents in 2023

CLClearone: 4 patents #1 of 6Top 20%
Panasonic: 1 patents #631 of 1,818Top 35%
La Grange, IL: #2 of 17 inventorsTop 15%
Illinois: #351 of 8,683 inventorsTop 5%
Overall (2023): #33,168 of 537,848Top 7%
5 Patents 2023

Issued Patents 2023

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11831812 Conferencing device with beamforming and echo cancellation Ashutosh Pandey, Darrin T. Thurston, Tracy A. Bathurst 2023-11-28 $556,000
11743638 Ceiling-tile beamforming microphone array system with auto voice tracking Derek Graham, Michael Braithwaite 2023-08-29 $296,000
11743639 Ceiling-tile beamforming microphone array system with combined data-power connection Derek Graham, Michael Braithwaite 2023-08-29 $296,000
11726322 Polarization rotator for head-up display Steven Craig Bower 2023-08-15
11601749 Ceiling tile microphone system Derek Graham, Michael Braithwaite 2023-03-07 $864,000