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

Yi-Ching Wu — 29 Patents

UMUnited Microelectronics: 13 patents #463 of 4,560Top 15%
SLSpansion Llc.: 6 patents #149 of 769Top 20%
RSRealtek Semiconductor: 3 patents #447 of 1,741Top 30%
Cypress Semiconductor: 2 patents #776 of 1,866Top 45%
LSLongitude Flash Memory Solutions: 2 patents #16 of 26Top 65%
CCChicony Power Technology Co.: 1 patents #124 of 229Top 55%
ASAcademia Sinica: 1 patents #407 of 1,112Top 40%
Overall (All Time): #127,851 of 4,157,543Top 4%
29 Patents All Time
Yi-Ching Wu has been granted 29 US patents while listed as an inventor at United Microelectronics. The first was granted in 2002 and the most recent in September 2025. Yi-Ching Wu ranks #127,851 of 4,157,543 US inventors in our database (top 3.1%). Patent records list Yi-Ching Wu in Hsinchu, CA, TW.

Patents per Year

Patents granted per year, 2002 to 2025Bar chart with a peak of 4 patents in 2007.peak 42002: 1 patents20022007: 4 patents2008: 2 patents20082009: 1 patents2010: 1 patents20102011: 3 patents2013: 2 patents20132014: 3 patents2015: 2 patents20152016: 1 patents2017: 1 patents20172019: 1 patents2021: 1 patents20212022: 2 patents2023: 1 patents20232024: 1 patents2025: 2 patents2025

Issued Patents All Time

Showing 1–25 of 29 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12413211 Frequency mixing circuit with multi-transistor architecture Chia-Jun Chang 2025-09-09
12388422 Resistive attenuator and method for improving linearity of resistive attenuator Chia-Jun Chang 2025-08-12
11950412 Gate fringing effect based channel formation for semiconductor device Youseok Suh, Sung-Yong Chung, Ya-Fen Lin 2024-04-02
11588612 Communication chip Jon-Jin Chen, Chia-Jun Chang, Ka-Un Chan 2023-02-21
11287898 Backlight module and illuminated keyboard Hsuan-Wei Ho 2022-03-29
11251189 Gate fringing effect based channel formation for semiconductor device Youseok Suh, Sung-Yong Chung, Ya-Fen Lin 2022-02-15
11171608 Mixing circuit Yuh-Jing Hwang, Chau-Ching Chiong, Bo Lu, Huei-Jung Wang 2021-11-09
10297606 Gate fringing effect based channel formation for semiconductor device Youseok Suh, Sung-Yong Chung, Ya-Fen Lin 2019-05-21 $19,792,000
9570458 Gate fringing effect based channel formation for semiconductor device Youseok Suh, Sung-Yong Chung, Ya-Fen Lin 2017-02-14 $15,279,000
9378968 Method for planarizing semiconductor device Horng-Bor Lu, Yung-Chieh Kuo 2016-06-28 $133,000
9064814 Semiconductor structure having metal gate and manufacturing method thereof Chih-Sen Huang, Ching-Wen Hung 2015-06-23 $324,000
9040315 Method for planarizing semiconductor devices Tzu-Hung Yang, Chih-Chung Wu 2015-05-26 $516,000
8921947 Multi-metal gate semiconductor device having triple diameter metal opening Ching-Wen Hung, Chih-Sen Huang 2014-12-30 $171,000
8755646 Optical transformer Shuenn-Jeng Chen 2014-06-17 $490,000
8692310 Gate fringing effect based channel formation for semiconductor device Youseok Suh, Sung-Yong Chung, Ya-Fen Lin 2014-04-08 $1,440,000
8536038 Manufacturing method for metal gate using ion implantation Shao-Wei Wang, Yu-Ren Wang, Chien-Liang Lin, Wen-Yi Teng, Tsuo-Wen Lu +8 more 2013-09-17 $517,000
8520987 Method of fabricating an optical transformer Shuenn-Jeng Chen 2013-08-27 $397,000
8076213 Method for fabricating a metal-insulator-metal capacitor Lian-Hua Shih, Jiann-Fu Chen, Ming-Te Chen, Chin-Jen Cheng 2011-12-13 $654,000
7916523 Method of erasing a resistive memory device An-Chung Chen, Sameer Haddad, Swaroop Kaza 2011-03-29 $1,187,000
7894243 Methods of programming and erasing resistive memory devices Michael VanBuskirk, Wei Daisy Cai, Colin S. Bill 2011-02-22 $1,504,000
7848146 Partial local self-boosting of a memory cell channel Youseok Suh, Ya-Fen Lin, Coling Stewart Bill, Takao Akaogi 2010-12-07 $1,429,000
7606021 Metal-insulator-metal capacitor and method for fabricating the same Lian-Hua Shih, Jiann-Fu Chen, Ming-Te Chen, Chin-Jen Cheng 2009-10-20 $15,899,000
7468326 Method of cleaning a wafer Ming-Te Chen, Chien-Tung Huang 2008-12-23 $4,370,000
7384800 Method of fabricating metal-insulator-metal (MIM) device with stable data retention Steven C. Avanzino, Sameer Haddad, An-Chung Chen, Suzette K. Pangrle, Jeffrey A. Shields 2008-06-10 $2,063,000
7286388 Resistive memory device with improved data retention An-Chung Chen, Sameer Haddad, Tzu-Ning Fang, Colin S. Bill 2007-10-23 $1,405,000