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

Daniel S. Purdy — 4 Patents

Lockheed Martin: 3 patents #1,088 of 6,507Top 20%
UFUS Air Force: 1 patents #6,190 of 16,312Top 40%
Newtown, PA: #169 of 507 inventorsTop 35%
Pennsylvania: #19,182 of 74,527 inventorsTop 30%
Overall (All Time): #1,266,416 of 4,157,543Top 35%
4 Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6778138 Apparatus for and method of forming multiple simultaneous electronically scanned beams using direct digital synthesis H. Wade Swinford 2004-08-17
6507315 System and method for efficiently characterizing the elements in an array antenna Jeffrey Michael Ashe, Erik Lier 2003-01-14
6163296 Calibration and integrated beam control/conditioning system for phased-array antennas Erik Lier, Gregory Michael Kautz 2000-12-19
6084545 Near-field calibration system for phase-array antennas Erik Lier, Jeffrey Michael Ashe, Anthony W. Jacomb-Hood, Vladimir Volman 2000-07-04