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For the Inventor, By the Inventor

Dongguan, China

Dongguan Littelfuse Electronics Company Limited

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USPTO Granted Patents = 17


Forward Citations = 8

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31 inventors (with patents filed for the assignee):

goldMedal Dongjian Song (7 out of 7 patents)

silverMedal Libing Lu (4 out of 4 patents)

bronzeMedal Hailang Tang (4 out of 6 patents)

4.  Wen Ju Yang (3 out of 11 patents)

5.  Yanjing Xiao (3 out of 3 patents)

6.  Werner Johler (2 out of 13 patents)

7.  Jianhua Chen (2 out of 43 patents)

8.  Shuying Liu (2 out of 2 patents)

9.  Guoliang Chen (2 out of 2 patents)

10.  Ming Lei (2 out of 2 patents)

11.  Youqun Sui (2 out of 2 patents)

12.  Chun-Kwan Tsang (2 out of 10 patents)

13.  Yi-hua Deng (2 out of 2 patents)

14.  Liang Gu (1 out of 12 patents)

15.  Xiaolong Gong (1 out of 1 patent)


17 patents:

1. 12770762 - High hold current and high voltage endurance pptc material, device, and method of fabrication (2026-10-20),
2. 12688957 - Thermally protected metal oxide varistor (2026-07-21),
3. 12412685 - High soldering strength terminal for surge protection device (2025-09-09),
4. 12211632 - TMOV device (2025-01-28),
5. 12131849 - Fast activation thermal fuse for short circuit current protection (2024-10-29),
6. 11998937 - Height-adjustable masking pallet assembly for arc spray applications (2024-06-04),
7. 11823821 - Polymer voltage-dependent resistor (2023-11-21),
8. 11615899 - Polymer voltage-dependent resistor (2023-03-28),
9. 11410801 - Thermally protected metal oxide varistor (2022-08-09),
10. 11348710 - Surface mount metal oxide varistor device (2022-05-31),
11. 11177057 - Base metal electrodes for metal oxide varistor (2021-11-16),
12. 11107612 - Overheat protection device and varistor (2021-08-31),
13. 11043317 - Conbined tubular metal oxide varistor and gas discharge tube (2021-06-22),
14. 10839993 - Base metal electrodes for metal oxide varistor (2020-11-17),
15. 10446299 - Varistor having multilayer coating and fabrication method (2019-10-15),
Company Overview
Dongguan Littelfuse Electronics Company Limited specializes in the development and manufacturing of electronic components, particularly focusing on circuit protection and power management solutions. The company is recognized for its innovative technologies that enhance the reliability and efficiency of electronic systems across various industries, including automotive, industrial, and consumer electronics. Situated in Dongguan, China, it plays a significant role in the global supply chain for electronic components.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 27 2026

17 Patents

#40 in Dongguan

#1,715 in China

#35,974 in the World

Dongguan, CN
Dongguan, China

Dongguan Littelfuse Electronics Company Limited

Forward Citations = 8

31 inventors:

goldMedal Dongjian Song (7 out of 7 patents)

silverMedal Libing Lu (4 out of 4 patents)

bronzeMedal Hailang Tang (4 out of 6 patents)

4.  Wen Ju Yang (3 out of 11 patents)

5.  Yanjing Xiao (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Dongguan Littelfuse Electronics Company Limited. Retrieved from https://idiyas.com/company/dongguan-littelfuse-electronics-company

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
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