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

David M. Upton

RTX (Raytheon): 4 patents #2,949 of 15,912Top 20%
Motorola: 1 patents #6,475 of 12,470Top 55%
Mont Vernon, NH: #17 of 55 inventorsTop 35%
New Hampshire: #2,841 of 12,181 inventorsTop 25%
Overall (All Time): #1,004,597 of 4,157,543Top 25%
5 Patents All Time

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
9083351 Phase lock loop with tracking filter for attenuating spurious signals of a swept local oscillator Jack Lee, Michael E. Yeomans, Marc S. Wald, James P. Dumais 2015-07-14
5568086 Linear power amplifier for high efficiency multi-carrier performance Jack J. Schuss, Peter R. Maloney, Robert J. McMorrow 1996-10-22
5420541 Microwave doherty amplifier Robert J. McMorrow 1995-05-30
5289142 Transmit/receive switch for phased array antenna 1994-02-22
5270667 Impedance matching and bias feed network 1993-12-14