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USPTO Patent Rankings Data through Dec 31, 2025
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Ivan L. Johnston — 7 Patents

IEInterstate Electronics: 3 patents #6 of 43Top 15%
LCL-3 Communications: 3 patents #88 of 507Top 20%
LEL3Harris Interstate Electronics: 1 patents #3 of 6Top 50%
Corona, CA: #205 of 1,452 inventorsTop 15%
California: #83,669 of 386,348 inventorsTop 25%
Overall (All Time): #680,018 of 4,157,543Top 20%
7 Patents All Time
Ivan L. Johnston has been granted 7 US patents while listed as an inventor at Interstate Electronics. The first was granted in 2005 and the most recent in August 2023. Ivan L. Johnston ranks #680,018 of 4,157,543 US inventors in our database (top 16.4%). Patent records list Ivan L. Johnston in Corona, CA, US.

Issued Patents All Time

Showing 1–7 of 7 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
11733389 Global navigation satellite system spoofer identification technique based on carrier to noise ratio signatures Gilberto I. Sada, Steven B. Alexander 2023-08-22
11194053 Global navigation satellite system spoofer identification technique based on carrier to noise ratio signatures Gilberto I. Sada, Steven B. Alexander 2021-12-07
10545246 Global navigation satellite system spoofer identification technique based on carrier to noise ratio signatures Gilberto I. Sada, Steven B. Alexander 2020-01-28
7471744 Efficient space-time adaptive processing (STAP) filter for global positioning system (GPS) receivers Robert J. Van Wechel 2008-12-30 $26,408,000
7292663 Efficient space-time adaptive processing (STAP) filter for global positioning system (GPS) receivers Robert J. Van Wechel 2007-11-06 $59,657,000
7197095 Inverse fast fourier transform (IFFT) with overlap and add Robert J. Van Wechel 2007-03-27
6952460 Efficient space-time adaptive processing (STAP) filter for global positioning system (GPS) receivers Robert J. Van Wechel 2005-10-04 $43,851,000