H01C RESISTORS
Description
Resistors and resistive elements used in electrical circuits and electronic devices. This subclass covers fixed and variable resistors, thermistors, varistors, and resistive films or coatings, including their construction, materials (such as carbon, wire-wound, or metal film), and manufacturing processes. Related technologies include resistor networks, resistor arrays, and hybrid resistive assemblies integrated with other components. Adjacent classes cover resistor applications within specific circuit configurations (H01L for semiconductors) and resistive heating elements designed primarily for thermal rather than electrical control purposes.
Filing statistics
CPC subclass H01C recorded 15,389 patent applications worldwide between 2013 and 2023. Annual filings grew from 1,147 in 2013 to 1,264 in 2023 (+10%), peaking at 1,745 applications in 2018. The most active applicants in class H01 are SAMSUNG ELECTRONICS COMPANY (37,897 applications), TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY (36,116 applications) and APPLIED MATERIALS (21,640 applications).
Source: EPO PATSTAT, worldwide filings
8 direct subcodes
Child Classifications
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- H01C 1/00 Details
- H01C 10/00 Adjustable resistors
- H01C 11/00 Non-adjustable liquid resistors
- H01C 13/00 Resistors not provided for elsewhere
- H01C 17/00 Apparatus or processes specially adapted for manufacturing resistors (providing fillings for housings or enclosures H01C1/02; reducing insulation surrounding a resistor to powder H01C1/03; manufacture of thermally variable resistors H01C7/02, H01C7/04)
- H01C 3/00 Non-adjustable metal resistors made of wire or ribbon, e.g. coiled, woven or formed as grids
- H01C 7/00 Non-adjustable resistors formed as one or more layers or coatings; Non-adjustable resistors made from powdered conducting material or powdered semi-conducting material with or without insulating material (consisting of loose powdered or granular material H01C8/00; resistors having potential barriers, e.g. field-effect resistors, H10D1/40 - H10D1/43, H10K10/10; semiconductor devices sensitive to electromagnetic or corpuscular radiation, e.g. photoresistors, H10F30/00; magnetic field controlled resistors H10N50/10; bulk negative resistance effect devices H10N80/00)
- H01C 8/00 Non-adjustable resistors consisting of loose powdered or granular conducting, or powdered or granular semi-conducting material
Top Applicants
Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT
- SAMSUNG ELECTRONICS COMPANY KR 37,897
- TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
- APPLIED MATERIALS US 21,640
- LG ENERGY SOLUTION KR 20,770
- LG CHEM KR 19,835
- TOKYO ELECTRON JP 18,519
- ROBERT BOSCH DE 14,595
- INTEL CORPORATION US 13,580
- MURATA MANUFACTURING COMPANY JP 12,151
- SAMSUNG SDI COMPANY KR 12,080