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USPTO Patent Rankings Data through Dec 31, 2025
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Li-Ching YANG — 5 Patents

DEDelta Electronics: 4 patents #492 of 2,746Top 20%
CCChengdu Monolithic Power Systems Co.: 1 patents #94 of 171Top 55%
Taoyuan, TW: #1,295 of 5,438 inventorsTop 25%
Overall (All Time): #907,971 of 4,157,543Top 25%
5 Patents All Time
Li-Ching YANG has been granted 5 US patents while listed as an inventor at Delta Electronics. The first was granted in 2020 and the most recent in February 2025. Li-Ching YANG ranks #907,971 of 4,157,543 US inventors in our database (top 21.8%). Patent records list Li-Ching YANG in Taoyuan, TW.

Patents per Year

Patents granted per year, 2020 to 2025Bar chart with a peak of 2 patents in 2023.peak 22020: 1 patents20202023: 2 patents20232024: 1 patents20242025: 1 patents2025

Issued Patents All Time

Showing 1–5 of 5 patents

Patent #TitleCo-InventorsDate
12222383 Insulation resistance detection circuit Wen-Lung Huang, Sheng-Hua Li 2025-02-11
12066479 Insulation resistance detection circuit and method of detecting insulation resistance Wen-Lung Huang, Sheng-Hua Li 2024-08-20
11714112 Detection apparatus for unbalanced DC link capacitor voltage Wen-Lung Huang, Sheng-Hua Li 2023-08-01
11581885 Pre-charge control circuit and method of controlling the same Wen-Lung Huang, Sheng-Hua Li 2023-02-14
10624172 Short/open protecting circuit and a method thereof Bo Yu, Junxin Tan, Taofeng Li, Shufa Jiang 2020-04-14

Frequent Collaborators

Sheng-Hua Li4 shared
Wen-Lung Huang4 shared
Junxin Tan1 shared
Shufa Jiang1 shared
Bo Yu1 shared
Taofeng Li1 shared

Nearby-Ranked Inventors

Joseph L. Mann5
Terry Richard Linn5
Ikuo DEGUCHI5
Swapnil Kumar5
Zachary W. Gyugyi5
Xiaoxue CHEN5
Mohankumar Krishnan VALIYAMBATH5
Baoquan Tan5
Jack Long5