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

Kai Liu — 137 Patents

RSRealtek Semiconductor: 38 patents #17 of 1,741Top 1%
ASAlpha And Omega Semiconductor: 34 patents #20 of 159Top 15%
SCStats Chippac: 29 patents #38 of 425Top 9%
ESEnkris Semiconductor: 5 patents #4 of 8Top 50%
DCDreame Innovation Technology (Suzhou) Co.: 1 patents #12 of 36Top 35%
FMFirst Institute Of Oceanography, Mnr: 1 patents #5 of 33Top 20%
LCLian Zheng Electronics (Shenzhen) Co.: 1 patents #2 of 11Top 20%
MPMaxim Integrated Products: 1 patents #560 of 945Top 60%
ATAutel Intelligent Technology: 1 patents #40 of 69Top 60%
RIRensselaer Polytechnic Institute: 1 patents #306 of 819Top 40%
SCSumec Hardware & Tools Co.: 1 patents #3 of 11Top 30%
IAIntersil Americas: 1 patents #345 of 468Top 75%
Kabushiki Kaisha Toshiba: 1 patents #13,641 of 21,451Top 65%
BCBeijing Sogou Technology Development Co.: 1 patents #20 of 70Top 30%
AIAlpha And Omega Semiconductors Incorporated: 1 patents #6 of 20Top 30%
Phoenix, AZ: #15 of 6,660 inventorsTop 1%
Arizona: #71 of 32,909 inventorsTop 1%
Overall (All Time): #7,506 of 4,157,543Top 1%
137 Patents All Time
Kai Liu has been granted 137 US patents while listed as an inventor at Realtek Semiconductor. The first was granted in 2006 and the most recent in September 2025. Kai Liu ranks #7,506 of 4,157,543 US inventors in our database (top 0.18%). Patent records list Kai Liu in Phoenix, AZ, US.

Issued Patents All Time

Showing 1–25 of 137 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12424518 Capacitor embedded 3D resonator for broadband filter Jonghae Kim, Je-Hsiung Lan, Ranadeep Dutta 2025-09-23
12414317 Resonant tunneling diodes and manufacturing methods thereof Kai Cheng 2025-09-09
12413178 Rotation system and controller for photovoltaic tracker Song Wan, Qinwei Liu, Wuben Sun, Yanzhong Zhang 2025-09-09
12395180 Successive approximation analog to digital conversion circuit and method having optimized linearity Wei-Jyun Wang, Shih-Hsiung Huang, Chien-Ming Wu 2025-08-19
12395152 Compact hybrid acoustic wave filter structure Je-Hsiung Lan, Jonghae Kim, Nosun PARK, Jui-Yi Chiu 2025-08-19
12362714 Signal receiving apparatus and programmable gain amplifier having mode-switching mechanism Yun-Tse Chen 2025-07-15
12354948 Integrated device and integrated passive device comprising magnetic material Roy Chiu, Nosun PARK, Je-Hsiung Lan, Jonghae Kim 2025-07-08
12314829 Method and apparatus for driving digital human, and electronic device Bo Fan, Zhen Xu, Xi Chen, Wei Chen, Fanbo Meng +2 more 2025-05-27
12273095 Wideband filter with resonators and inductors Rui Tang, Changhan Hobie Yun, Mario Francisco Velez, Jonghae Kim 2025-04-08
12255529 Power factor correction and DC-DC multiplexing converter and uninterruptible power supply including the same Yusong Ding, Zhongyong Xu 2025-03-18
12211923 Semiconductor structure and forming method thereof Kai Cheng 2025-01-28
12207774 Cleaning device, floor brush assembly and installation assembly of rolling brush Xu Xu, Congchao Xu 2025-01-28
12206155 Radio frequency oscillator with ceramic resonator and surface-mounted integrated circuit package Jonghae Kim, Jui-Yi Chiu, Nosun PARK, Je-Hsiung Lan 2025-01-21
12155373 Backend and acoustic process integration for high-Q filter Je-Hsiung Lan, Jonghae Kim 2024-11-26 $20,218,000
12151694 Automobile diagnosis device, system and method Huaming Chen, Haibo Pang, Yong Chen, Fengji Bi, Yuanping Luo 2024-11-26
12142561 Integrated device and integrated passive device comprising magnetic material Je-Hsiung Lan, Jonghae Kim 2024-11-12 $23,398,000
12040268 Thin film resistor (TFR) device structure for high performance radio frequency (RF) filter design Je-Hsiung Lan, Jonghae Kim, Nosun PARK 2024-07-16 $20,876,000
11848205 Semiconductor structure and manufacturing method therefor Kai Cheng 2023-12-19
11829317 Cable, controller, and control method Ming-Chang Wu, Yao-Hsin Feng, Neng-Hsien Lin, Chen Shen 2023-11-28
11747497 Seafloor multi-wave seismic source and seafloor exploration system Yanliang Pei, Mingming Wen, Chenguang Liu, Yifan Huang, Liancheng Zhang +2 more 2023-09-05
11727537 Bokeh effect in variable aperture (VA) camera systems Wen-Chun Feng, Hui Shan Kao 2023-08-15 $7,580,000
11637559 Method of operating analog-to-digital converter by reversed switching technique and analog-to-digital converter utilizing same Kai-Yue Lin, Wei-Jyun Wang, Shih-Hsiung Huang 2023-04-25
11637558 Analog-to-digital converter capable of reducing nonlinearity and method of operating the same Kai-Yue Lin, Wei-Jyun Wang, Shih-Hsiung Huang 2023-04-25
11567522 Voltage reference buffer circuit Che-Wei Chang, Liang-Huan Lei, Shih-Hsiung Huang 2023-01-31
11496145 Pipeline analog to digital converter and timing adjustment method Shih-Hsiung Huang, Pan Zhang, Chien-Ming Wu 2022-11-08