IPC Subgroup
H02K 41/02 Linear motors; Sectional motors
Introduced: September 1968
Last revised: January 2006
Full Title
Propulsion systems in which a rigid body is moved along a path due to dynamo-electric interaction between the body and a magnetic field travelling along the path > Linear motors; Sectional motors
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- DYNAMO-ELECTRIC MACHINES
Related Keywords
electric LINEAR motorsTRAVELLING-WAVE motors
3 direct subcodes
Child Classifications
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- H02K 41/025 Asynchronous motors
- H02K 41/03 Synchronous motors; Motors moving step by step; Reluctance motors
- H02K 41/035 DC motors; Unipolar motors
Top Applicants
Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 54,496
- MITSUBISHI ELECTRIC CORPORATION JP 10,495
- TOYOTA MOTOR CORPORATION 9,464
- GUANGDONG POWER GRID CORPORATION 9,339
- ROBERT BOSCH DE 8,226
- SIEMENS DE 8,218
- DENSO CORPORATION 7,063
- MITSUBISHI ELECTRIC CORPORATION 6,619
- SAMSUNG ELECTRONICS COMPANY KR 5,826
- GREE ELECTRIC APPLIANCES 5,094