Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
DL

David Long

NSNational Semiconductor: 1 patents #1,247 of 2,238Top 60%
PSPathfinder Energy Services: 1 patents #13 of 21Top 65%
SSSierra Semiconductor: 1 patents #11 of 23Top 50%
TMThe Mitre: 1 patents #217 of 619Top 40%
Sunnyvale, CA: #5,543 of 14,302 inventorsTop 40%
California: #124,610 of 386,348 inventorsTop 35%
Overall (All Time): #1,134,200 of 4,157,543Top 30%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
11789160 Carry-on GPS spoofing detector Erik T. Lundberg, Hugo F. TRAPPE, Christian PD. MINOR 2023-10-17
7009363 Optimized battery life in multiple battery applications Richard A. Beals 2006-03-07
5377260 Telephone circuit to control off-hook status during receipt of caller-ID signal 1994-12-27
4191942 Single slope A/D converter with sample and hold 1980-03-04