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IPC Subgroup
H02K 7/1

Structural association with clutches, brakes, gears, pulleys or mechanical starters

Introduced: September 1968

Last revised: January 2006

Full Title

Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines > Structural association with clutches, brakes, gears, pulleys or mechanical starters

Classification Context

Section:
ELECTRICITY
Class:
GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
Subclass:
DYNAMO-ELECTRIC MACHINES

Filing statistics

IPC H02K 7/1 belongs to the parent subclass H02K, which recorded 426,168 patent applications worldwide between 2013 and 2023. Annual filings grew from 23,896 in 2013 to 46,626 in 2023 (+95%), peaking at 54,100 applications in 2020. The most active applicants in class H02 are SGCC(STATE GRID CORPORATION OF CHINA) (54,496 applications), MITSUBISHI ELECTRIC CORPORATION (10,495 applications) and TOYOTA MOTOR CORPORATION (9,464 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

BRAKE(S) structurally associated with electric machinesCLUTCH(ES) structurally associated with electric machinesGEAR(S) structurally associated with electric machines

10 direct subcodes

Child Classifications

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  • H02K 7/102 with friction brakes
  • H02K 7/104 with eddy-current brakes
  • H02K 7/106 with dynamo-electric brakes
  • H02K 7/108 with friction clutches
  • H02K 7/11 with dynamo-electric clutches
  • H02K 7/112 with friction clutches in combination with brakes
  • H02K 7/114 with dynamo-electric clutches in combination with brakes
  • H02K 7/116 with gears
  • H02K 7/118 with starting devices
  • H02K 7/12 with auxiliary limited movement of stators, rotors or core parts, e.g. rotors axially movable for the purpose of clutching or braking

Top Applicants

Top 10 applicants by patent filingsfor class H02, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 54,496
  2. MITSUBISHI ELECTRIC CORPORATION JP 10,495
  3. TOYOTA MOTOR CORPORATION 9,464
  4. GUANGDONG POWER GRID CORPORATION 9,339
  5. ROBERT BOSCH DE 8,226
  6. SIEMENS DE 8,218
  7. DENSO CORPORATION 7,063
  8. MITSUBISHI ELECTRIC CORPORATION 6,619
  9. SAMSUNG ELECTRONICS COMPANY KR 5,826
  10. GREE ELECTRIC APPLIANCES 5,094