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

K. J. Ray Liu

OWOrigin Wireless: 63 patents #1 of 38Top 3%
OWOrigin Research Wireless: 20 patents #3 of 27Top 15%
UMUniversity Of Maryland: 4 patents #30 of 857Top 4%
UPUniversity Of Maryland, College Park: 4 patents #69 of 1,056Top 7%
GUGeorge Mason University: 1 patents #49 of 157Top 35%
Potomac, MD: #5 of 998 inventorsTop 1%
Maryland: #58 of 35,612 inventorsTop 1%
Overall (All Time): #17,004 of 4,157,543Top 1%
92 Patents All Time

Issued Patents All Time

Showing 76–92 of 92 patents

Patent #TitleCo-InventorsDate
9794156 Handshaking protocol for time-reversal system Hang Ma, Yi Han, Yan Chen, Zoltan Safar, Feng Han 2017-10-17
9781700 Time-reversal wireless paradigm for internet of things Yan Chen, Hang Ma, Yi Han, Hung-Quoc Duc Lai 2017-10-03
9736002 Quadrature amplitude modulation for time-reversal systems Yu-Han Yang, Yan Chen 2017-08-15
9686054 Joint waveform design and interference pre-cancellation for time-reversal systems Yu-Han Yang 2017-06-20
9559874 Multiuser time-reversal division multiple access uplink system with parallel interference cancellation Feng Han 2017-01-31
9538040 Active sensing for dynamic spectrum access Nathan Goergen, Wan-Yi Lin 2017-01-03
9407306 Quadrature amplitude modulation for time-reversal systems Yu-Han Yang, Yan Chen 2016-08-02
9402245 Time-reversal wireless paradigm for internet of things Yan Chen, Hang Ma, Yi Han, Hung-Quoc Duc Lai 2016-07-26
9313020 Handshaking protocol for time-reversal system Hang Ma, Yi Han, Yan Chen, Zoltan Safar, Feng Han 2016-04-12
9226304 Time-reversal wireless paradigm for internet of things Yan Chen, Hang Ma, Yi Han, Hung-Quoc Duc Lai 2015-12-29
7848443 Data communication with embedded pilot information for timely channel estimation Chaiyod Pirak, Z. Jane Wang 2010-12-07
7720168 Systems and methods for coding in broadband wireless communication systems to achieve maximum diversity in space, time and frequency Weifeng Su, Zoltan Safar 2010-05-18
7653122 Method and system for power controlled effective allocation of sub-bands in ultra-wideband communication Wipawee Siriwongpairat, Zhu Han 2010-01-26
6377812 Combined power control and space-time diversity in mobile cellular communications Farrokh Rashid-Farrokhi, Leandros Tassiulas 2002-04-23
5953388 Method and apparatus for processing data from a tomographic imaging system David Walnut, Carlos A. Berenstein, Farrokh Rashid-Farrokhi 1999-09-14
5790686 DCT-based motion estimation method Ut-Va Koc 1998-08-04
5339265 Optimal unified architectures for the real-time computation of time-recursive discrete sinusoidal transforms Chin-Te Chiu 1994-08-16