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

Robert Fifield — 13 Patents

Philips: 4 patents #1,244 of 7,731Top 20%
NBNxp B.V.: 4 patents #595 of 3,591Top 20%
SSSt-Ericsson Sa: 2 patents #146 of 771Top 20%
U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Capitola, CA: #51 of 457 inventorsTop 15%
California: #46,935 of 386,348 inventorsTop 15%
Overall (All Time): #379,744 of 4,157,543Top 10%
13 Patents All Time

Issued Patents All Time

Showing 1–13 of 13 patents

Patent #TitleCo-InventorsDate
10328960 Express train system 2019-06-25
9987994 Rooftop bike rack system 2018-06-05
8831154 Radio receiver gain control 2014-09-09
8792600 Fractional frequency and sampling-rate change in the frequency domain Brian J. Minnis 2014-07-29
8634507 Receiver having an adaptive filter and method of optimizing the filter 2014-01-21
8331507 Multi-channel receiver device Richard Caldwell 2012-12-11
8085838 Receiver having an adaptive filter and method of optimising the filter 2011-12-27
7791515 Adapting filter to detected interference level 2010-09-07
7167454 Radio communication system Richard Caldwell, David H. Evans 2007-01-23
6781951 Radio communication system 2004-08-24
6744752 Radio local area network 2004-06-01
6504834 Wireless network 2003-01-07
6178512 Wireless network 2001-01-23