Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
KL

K. J. Ray Liu — 94 Patents

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: #57 of 35,612 inventorsTop 1%
Overall (All Time): #16,422 of 4,157,543Top 1%
94 Patents All Time
K. J. Ray Liu has been granted 94 US patents while listed as an inventor at Origin Wireless. The first was granted in 1994 and the most recent in December 2025. K. J. Ray Liu ranks #16,422 of 4,157,543 US inventors in our database (top 0.39%). Patent records list K. J. Ray Liu in Potomac, MD, US.

Patents per Year

Patents granted per year, 1994 to 2025Bar chart with a peak of 15 patents in 2022.peak 151994: 1 patents19941998: 1 patents1999: 1 patents19992002: 1 patents2010: 3 patents20102015: 1 patents2016: 3 patents20162017: 7 patents2018: 8 patents20182019: 11 patents2020: 6 patents20202021: 5 patents2022: 15 patents20222023: 6 patents2024: 12 patents20242025: 13 patents2025

Issued Patents All Time

Showing 1–25 of 94 patents

Patent #TitleCo-InventorsDate
12493666 Wireless sensing using classifier probing and refinement Sai Deepika Regani, Betty Wang, Oscar Chi-Lim Au 2025-12-09
12439288 Method, apparatus, and system for wireless sensing measurement and reporting Oscar Chi-Lim Au, Betty Wang, Hui-Chuan Lai 2025-10-07
12413450 Method, apparatus, and system for wireless sensing measurement and reporting Oscar Chi-Lim Au, Beibei Wang, Hung-Quoc Duc Lai 2025-09-09
12413999 Method, apparatus, and system for wireless sensing measurement and reporting Oscar Chi-Lim Au, Beibei Wang, Hung-Quoc Duc Lai 2025-09-09
12414000 Method, apparatus, and system for wireless sensing measurement and reporting Oscar Chi-Lim Au, Beibei Wang, Hung-Quoc Duc Lai 2025-09-09
12352882 Method, apparatus, and system for speech enhancement and separation based on audio and radio signals Muhammed Zahid Ozturk, Chenshu Wu, Beibei Wang, Oscar Chi-Lim Au 2025-07-08
12352844 Wireless sensing for in-vehicle child presence detection Sakila S. Jayaweera, Beibei Wang, Guozhen Zhu, Weihang Gao, Chenshu Wu +1 more 2025-07-08
12352889 Method, apparatus, and system for wireless sensing based on deep learning Guozhen Zhu, Beibei Wang, Weihang Gao, Yuqian Hu, Chenshu Wu +2 more 2025-07-08
12324647 Method, apparatus, and system for enhanced wireless monitoring of vital signs Beibei Wang, Sakila Sandeepani Jayaweera Samaranayake Arachchige Dona, Xiaolu Zeng, Wei Wang, Oscar Chi-Lim Au 2025-06-10
12290230 Method, apparatus, and system for automatic and adaptive wireless monitoring and tracking Chao-Lun Mai, Jeng-Feng Lee, Hung-Quoc Duc Lai, Dan Bugos, Hangfang Zhang +2 more 2025-05-06
12272375 Method, apparatus, and system for voice activity detection based on radio signals Muhammed Zahid Ozturk, Chenshu Wu, Beibei Wang, Oscar Chi-Lim Au, Min Wu 2025-04-08
12256360 Method, apparatus, and system for wireless proximity detection Yuqian Hu, Guozhen Zhu, Beibei Wang, Oscar Chi-Lim Au 2025-03-18
12216190 Method, apparatus, and system for wireless sensing based on linkwise motion statistics Yuqian Hu, Beibei Wang, Sai Deepika Regani, Peng Zan, Chenshu Wu +4 more 2025-02-04
12153156 Method, apparatus, and system for wireless monitoring with improved accuracy Muhammed Zahid Ozturk, Sai Deepika Regani, Beibei Wang, Hung-Quoc Duc Lai, Yi Han +1 more 2024-11-26
12078510 Method, apparatus, and system for map reconstruction based on wireless tracking Guozhen Zhu, Chenshu Wu, Beibei Wang, Oscar Chi-Lim Au 2024-09-03
12066572 Method, apparatus, and system for human identification based on human radio biometric information Sai Deepika Regani, Qinyi Xu, Beibei Wang, Min Wu, Oscar Chi-Lim Au 2024-08-20
12046040 Method, apparatus, and system for people counting and recognition based on rhythmic motion monitoring Fengyu Wang, Beibei Wang, Sai Deepika Regani, Feng Zhang, Chenshu Wu +3 more 2024-07-23
D1035672 Display screen or portion thereof with graphical user interface Chao-Lun Mai, Dan Bugos, Beibei Wang, Oscar Chi-Lim Au 2024-07-16
12036948 Method, apparatus, and system for vehicle wireless monitoring Chao-Lun Mai, Jeng-Feng Lee, David N. Claffey, Hangfang Zhang, Feng Zhang +3 more 2024-07-16
D1034628 Display screen or portion thereof with transitional graphical user interface Chao-Lun Mai, Dan Bugos, Beibei Wang, Oscar Chi-Lim Au 2024-07-09
12004838 Method, apparatus, and system for wireless vital monitoring using high frequency signals Fengyu Wang, Beibei Wang, Xiaolu Zeng, Chenshu Wu, Oscar Chi-Lim Au 2024-06-11
11953618 Method, apparatus, and system for wireless motion recognition Sai Deepika Regani, Beibei Wang, Min Wu, Oscar Chi-Lim Au 2024-04-09
11940550 Method, apparatus, and system for wireless monitoring to ensure security Chao-Lun Mai, Dan Bugos, Hung-Quoc Duc Lai, Spencer G. Maid, Beibei Wang +1 more 2024-03-26
11928894 Method, apparatus, and system for wireless gait recognition Chenshu Wu, Feng Zhang, Beibei Wang, Yuqian Hu, Oscar Chi-Lim Au 2024-03-12
11906659 Method, apparatus, and system for wireless micro motion monitoring Chenshu Wu, Beibei Wang, Peng Zan, Sai Deepika Regani, Xiaolu Zeng +2 more 2024-02-20