Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Chen-Feng Chang — 6 Patents

SYSynopsys: 2 patents #669 of 2,302Top 30%
MCMean Well (Guangzhou) Electronics Co.: 1 patents #6 of 19Top 35%
UNUnknown: 1 patents #29,356 of 83,584Top 40%
Taoyuan, TW: #1,129 of 5,438 inventorsTop 25%
Overall (All Time): #779,687 of 4,157,543Top 20%
6 Patents All Time
Chen-Feng Chang has been granted 6 US patents while listed as an inventor at Synopsys. The first was granted in 2013 and the most recent in August 2025. Chen-Feng Chang ranks #779,687 of 4,157,543 US inventors in our database (top 18.8%). Patent records list Chen-Feng Chang in Taoyuan, TW.

Patents per Year

Patents granted per year, 2013 to 2025Bar chart with a peak of 1 patents in 2013.peak 12013: 1 patents20132014: 1 patents20142018: 1 patents20182023: 1 patents20232024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12380956 Multi-state one-time programmable memory circuit Yu-Chen Lo, Tsung-Han Lu, Shu-Chieh Chang, Chun-Hao Liang, Dong-Yu Wu +1 more 2025-08-05
12080363 Operation method of multi-bits read only memory Tien-Sheng Chao 2024-09-03
11837299 Operation method of multi-bits read only memory Tien-Sheng Chao 2023-12-05
10032554 Detachable transformer Yu-Hsiang Lee 2018-07-24
8875083 Routing method for flip chip package and apparatus using the same Chin-Fang Shen, Hsien-Shih Chiu, I-Jye Lin, Tien-Chang Hsu, Yao-Wen Chang +2 more 2014-10-28 $4,971,000
8578317 Routing method for flip chip package and apparatus using the same Chin-Fang Shen, Hsien-Shih Chiu, I-Jye Lin, Tien-Chang Hsu, Yao-Wen Chang +2 more 2013-11-05 $6,518,000