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

Keng-Hao Chang — 26 Patents

Microsoft: 13 patents #3,175 of 40,388Top 8%
ITITRI: 4 patents #1,876 of 9,619Top 20%
FAFavepc: 2 patents #3 of 4Top 75%
Disney: 2 patents #2,704 of 6,686Top 45%
NUNational Cheng Kung University: 1 patents #348 of 1,128Top 35%
Overall (All Time): #150,017 of 4,157,543Top 4%
26 Patents All Time
Keng-Hao Chang has been granted 26 US patents while listed as an inventor at Microsoft. The first was granted in 1998 and the most recent in August 2025. Keng-Hao Chang ranks #150,017 of 4,157,543 US inventors in our database (top 3.6%). Patent records list Keng-Hao Chang in Taichung, CA, TW.

Patents per Year

Patents granted per year, 1998 to 2025Bar chart with a peak of 6 patents in 2022.peak 61998: 1 patents19982012: 1 patents2013: 2 patents20132014: 1 patents2016: 2 patents20162017: 1 patents2019: 3 patents20192020: 3 patents2021: 1 patents20212022: 6 patents2023: 2 patents20232024: 2 patents2025: 1 patents2025

Issued Patents All Time

Showing 1–25 of 26 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12398588 Door stop and door frame assembly 2025-08-26
11960573 Neural network categorization accuracy with categorical graph neural networks Tianchuan Du, Ruofei Zhang, Paul Liu 2024-04-16 $292,834,000
11921766 Generating electronic summary documents for landing pages Ruofei Zhang, John Weston Hughes 2024-03-05
11603017 Query rewriting and interactive inquiry framework Ruofei Zhang, Zi Yin 2023-03-14 $417,100,000
11551039 Neural network categorization accuracy with categorical graph neural networks Tianchuan Du, Ruofei Zhang, Paul Liu 2023-01-10 $233,678,000
11449536 Generating electronic summary documents for landing pages Ruofei Zhang, John Weston Hughes 2022-09-20 $204,012,000
11388134 Wireless network-based voice communication security protection method Jung-Shian LI, I-Hsien Liu, Kuan-Chu Lu 2022-07-12
11315231 Industrial image inspection method and system and computer readable recording medium Yu-Ting Lai, Jwu-Sheng Hu, Ya-Hui Tsai 2022-04-26
11301732 Processing image-bearing electronic documents using a multimodal fusion framework Changbo HU, Qun Li, Ruofei Zhang 2022-04-12 $182,277,000
11263487 Multi-task GAN, and image translator and image classifier trained thereby Qun Li, Changbo HU, Ruofei Zhang 2022-03-01 $213,318,000
11250042 Taxonomy enrichment using ensemble classifiers Srinivasa R. Neerudu, Sujith Vishwajith, Ruofei Zhang 2022-02-15 $204,776,000
11163940 Pipeline for identifying supplemental content items that are related to objects in images Qun Li, Changbo HU, Ruofei Zhang 2021-11-02 $226,584,000
10654380 Query rewriting and interactive inquiry framework Ruofei Zhang, Zi Yin 2020-05-19 $139,542,000
10636133 Automated optical inspection (AOI) image classification method, system and computer-readable media Wei-Yao Chiu, Ya-Hui Tsai, Jwu-Sheng Hu 2020-04-28
10614118 Increasing inclusiveness of search result generation through tuned mapping of text and images into the same high-dimensional space Jia-Ming He, Ruofei Zhang, Xiaozong Wang 2020-04-07 $77,706,000
10459928 Dynamic tensor attention for information retrieval scoring Ruofei Zhang, Zi Yin 2019-10-29 $67,573,000
10354182 Identifying relevant content items using a deep-structured neural network Ruofei Zhang, Shuangfei Zhai 2019-07-16 $67,164,000
10261025 Workpiece surface detection method and system using the same Wei-Yao Chiu, Kuo-Feng Hung, Yu-Ting Lin 2019-04-16
9613465 Method for suturing 3D coordinate information and the device using the same Ya-Hui Tsai, Wei-Yao Chiu, Chin-Kuei Chang, Yu-Ting Lin 2017-04-04
9413431 Transceiver Shao-Chang Chang 2016-08-09
9279799 Methods of improving auto-coding capabilities for biosensors and devices for same Tsung-Sung Hsiao, Wen-Huang Chen, Han-Ching Tsai 2016-03-08
8803681 Object finder Hung-Cheng Chen 2014-08-12
8505819 Methods of increasing coding information for biosensors and devices for same Cheng-Che Lee, Wen-Hai Tsai, Chiu-Chin Yang, Waken Chen, Jih-Hsin Yeh 2013-08-13
8421895 Image sensing device and image sensing method Le-Chun Ho, Wen-Cheng Yen 2013-04-16
8164667 Image sensing device and image sensing method Le-Chun Ho, Wen-Cheng Yen 2012-04-24