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USPTO Data Jan 1 1976 - Nov 10 2026
516 Patents
#16 in Chicago, IL
#50 in Illinois
#950 in US
#1,883 in the World
Littelfuse, Inc.
Forward Citations = 3,378
463 inventors:
Chicago, IL, United States of America
Littelfuse, Inc.
Calculating rank
% Expired Patents = 3.9
CIPO Patents = 3
EPO Patents = 129
Trademarks = 54
Forward Citations = 3,378
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463 inventors (with patents filed for the assignee):
Jianhua Chen (32 out of 43 patents)
Stephen J Whitney (24 out of 27 patents)
Seibang Oh (24 out of 27 patents)
4. Julio Cesar Urrea (24 out of 28 patents)
5. Martin G Pineda (23 out of 26 patents)
6. Edwin James Harris (21 out of 24 patents)
7. James J Beckert (17 out of 20 patents)
8. Gary M Bold (16 out of 21 patents)
9. Albert V Enriquez (16 out of 16 patents)
10. Yuriy Borisovich Matus (16 out of 25 patents)
11. Michael Schlaak (14 out of 14 patents)
12. Boris Golubovic (14 out of 30 patents)
13. Derek Lasini (12 out of 13 patents)
14. Robert J Fleming (12 out of 60 patents)
15. Brian Johnson (11 out of 13 patents)
Core Competencies:
Circuit Protection
PPTC Device
High Breaking Capacity Fuse
Overcurrent Protection
Semiconductor Package
Fuse Assembly
Voltage Indicator
Thermal Protection
516 patents:
11. 12545011 - Methods of preparing metal sheets for a DCB / DAB substrate bonding process (2026-02-10),
Company Overview
Littelfuse, Inc. is a leading provider of circuit protection solutions, headquartered in Chicago, IL. The company specializes in developing and manufacturing a wide range of products, including PPTC devices, high breaking capacity fuses, and overcurrent protection solutions. Littelfuse focuses on advancing technologies in semiconductor packaging, fuse assemblies, voltage indicators, and thermal protection, catering to diverse industries such as automotive, industrial, and consumer electronics. Their commitment to innovation ensures reliable protection for electronic systems worldwide.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Littelfuse, Inc.. Retrieved from https://idiyas.com/company/littelfuse
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]
3 patents (CIPO):
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]
129 patents (EPO):
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]