Patent Leaderboard
USPTO Patent Rankings Data through Dec 31, 2025
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Teddy To — 9 Patents

LILittelfuse: 5 patents #54 of 421Top 15%
LCLittelfuse Semiconductor (Wuxi) Co.: 4 patents #1 of 19Top 6%
Hong Kong, CN: #201 of 3,463 inventorsTop 6%
Overall (All Time): #535,341 of 4,157,543Top 15%
9 Patents All Time
Teddy To has been granted 9 US patents while listed as an inventor at Littelfuse. The first was granted in 2020 and the most recent in September 2024. Teddy To ranks #535,341 of 4,157,543 US inventors in our database (top 12.9%). Patent records list Teddy To in Hong Kong, CN.

Patents per Year

Patents granted per year, 2020 to 2024Bar chart with a peak of 4 patents in 2022.peak 42020: 2 patents20202021: 1 patents20212022: 4 patents20222023: 1 patents20232024: 1 patents2024

Issued Patents All Time

Showing 1–9 of 9 patents

Patent #TitleCo-InventorsDateApprox Value ⓘ
12081017 Overcurrent protection by depletion mode MOSFET or JFET and bi-metallic temperature sensing switch in mini circuit breaker Chuan Fang Chin 2024-09-03 $30,955,000
11637423 Overcurrent protection by depletion mode MOSFET or JFET and bi-metallic temperature sensing switch in mini circuit breaker Chuan Fang Chin 2023-04-25 $15,708,000
11411393 Ultra-low clamping voltage surge protection module using depletion mode MOSFET Chuan Fang Chin 2022-08-09 $33,798,000
11374393 Depletion mode MOSFET for overcurrent protection Jeff Chin, Neil LeJeune, Orware Liu 2022-06-28 $36,117,000
11362650 Overcurrent protection by depletion mode MOSFET and bi-metallic temperature sensing switch Chuan Fang Chin 2022-06-14 $32,431,000
11362513 Hybrid overvoltage protection device and assembly Jifeng Zhou, Weihua Tian, Chuan Fang Chin 2022-06-14
10998719 Overvoltage protection and linear regulator device module Wei Tian 2021-05-04
10714240 Overvoltage protection device Chuanfang Chin, Yaosheng Du 2020-07-14
10714241 Overvoltage protection device Chuanfang Chin, Yaosheng Du 2020-07-14