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

Qing Chang — 33 Patents

UNUnknown: 34 patents #63 of 83,584Top 1%
CCChengdu Boe Optoelectronics Technology Co.: 5 patents #377 of 1,466Top 30%
BOBOE: 5 patents #3,511 of 12,373Top 30%
Huawei: 4 patents #3,204 of 15,535Top 25%
DTDalian University Of Technology: 3 patents #129 of 1,277Top 15%
General Motors: 3 patents #4,723 of 18,328Top 30%
BCBeijing Naura Microelectronics Equipment Co.: 2 patents #39 of 168Top 25%
TETencent: 2 patents #2,702 of 8,131Top 35%
Broadcom: 1 patents #5,859 of 9,346Top 65%
UIUniversity Of Iowa: 1 patents #491 of 1,079Top 50%
RGRakuten Group: 1 patents #217 of 553Top 40%
SCState Grid Corporation Of China: 1 patents #289 of 1,453Top 20%
HTHong Kong University Of Science And Technology: 1 patents #320 of 964Top 35%
ABAbgenix: 1 patents #30 of 52Top 60%
UBUniversity Of Maryland, Baltimore: 1 patents #465 of 1,115Top 45%
ZCZhejiang Sanhua Intelligent Controls Co.: 1 patents #30 of 90Top 35%
Overall (All Time): #105,480 of 4,157,543Top 3%
33 Patents All Time
Qing Chang has been granted 33 US patents while listed as an inventor at Unknown. The first was granted in 1996 and the most recent in September 2025. Qing Chang ranks #105,480 of 4,157,543 US inventors in our database (top 2.5%). Patent records list Qing Chang in Shanghai, IN, CN.

Issued Patents All Time

Showing 1–25 of 33 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12413885 Sound collecting method, electronic device, and system Kai Tao, Mingjie Yin, Yao Jiang 2025-09-09
12278096 Shield cooling assembly, reaction chamber and semiconductor processing apparatus Bing Li, Guodong Bian 2025-04-15
12252776 Carrying device and semiconductor processing apparatus Bing Li, Mengxin Zhao 2025-03-18
12225339 Audio processing method, apparatus, and system Mingjie Yin, Haibo Miao 2025-02-11
12095889 Processing queue assignment based on a flag in a Geneve header Yong Wang, Guolin Yang, Eduard Serra Miralles, Dexiang Wang 2024-09-17
11906217 Electronic expansion valve Weixin He, Ze Yuan, Zicheng Shen 2024-02-20
11686124 Method and system for operating key and lock core with wireless charging Hongwei Qiao, Jing Zhang 2023-06-27
11628231 Static and mobile disinfection using high intensity narrow wavelength illumination King Lun Yeung, Nga Ki Wong, Ning ZHAN, Wei Han, Joseph Kai Cho Kwan +1 more 2023-04-18
11420257 Device and method for high-efficiency preparation of spherical metal powder for 3D printing employing separation into fibers Wei Shan Dong, Yao Meng, Sheng Zhu, Xiaoming Wang, Yang Zhao +12 more 2022-08-23
11372232 Light valve, display device and display method Jiao Fang, Wei He, Xinghua Li, Shi Cheng, Jian Yang +3 more 2022-06-28
11344950 Apparatus and method for preparing spherical metal powder based on one-by-one atomization method for uniform droplets Xiaoming Wang, Yang Zhao, Wei Shan Dong, Fumin Xu, Zhiqiang Ren +13 more 2022-05-31
11331724 Apparatus and method for efficiently preparing ultrafine spherical metal powder by one-by-one droplets centrifugal atomization method Xiaoming Wang, Yang Zhao, Wenyu Wang, Wei Shan Dong, Yao Meng +12 more 2022-05-17
11189117 Method and system for controlling a smart lock Hongwei Qiao, Jing Zhang 2021-11-30
10795150 Pixel unit, display substrate and display panel Wei He, Lixia Huang, Jian Yang, Xinghua Li 2020-10-06
10763378 Double printing method and screen stencil for improving the tensile force of the electrode of solar panel Yaohui Xie, GuanLun Zhang, Junmin WU 2020-09-01
10699327 Information processing apparatus, control method, and program 2020-06-30
10551649 Display panel, controlling method thereof and window comprising the same Wenqiang Chen, Wei He, Jiao Fang, Shi Cheng, Lixia Huang +2 more 2020-02-04
10122174 Parallelization method for black-start subsystems of power grid with external support Jingyou Xu, Chunming Wang, Hanping Xu, Youping Xu, Jisheng Li +2 more 2018-11-06
9985085 Array substrate for narrow frame design, manufacturing method thereof and display device Wenbin Yang, Yanxia Xin, Yuedong Shang 2018-05-29
9967691 Stereophonic sound recording method and apparatus, and terminal Li Liu 2018-05-08
9858916 Sound processing method and terminal device Kang An, Cunshou Qiu 2018-01-02
9825101 Top-emitting OLED substrate and fabrication method thereof, and display apparatus Wenbin Yang, Jinhao Huang, Xiangnan Wang 2017-11-21
9043778 Method and system for upgrading software Yehui Lin, Zurong Wu 2015-05-26
8928457 Smart interlock system and working method thereof Shuqiang Jin 2015-01-06
8890651 Interchangeable lock core and opening method thereof Shuqiang Jin, Hongwei Qiao, Lei Ji, Shuiping Liao 2014-11-18