H02K 5/04 Casings or enclosures characterised by the shape, form or construction thereof
Introduced: September 1968
Last revised: January 2006
Full Title
Casings; Enclosures; Supports > Casings or enclosures characterised by the shape, form or construction thereof
Classification Context
- Section:
- ELECTRICITY
- Class:
- GENERATION, CONVERSION, OR DISTRIBUTION OF ELECTRIC POWER
- Subclass:
- DYNAMO-ELECTRIC MACHINES
Filing statistics
IPC H02K 5/04 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
10 direct subcodes
Child Classifications
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- H02K 5/06 Cast metal casings
- H02K 5/08 Insulating casings
- H02K 5/1 with arrangements for protection from ingress, e.g. of water or fingers
- H02K 5/12 specially adapted for operating in liquid or gas
- H02K 5/14 Means for supporting or protecting brushes or brush holders
- H02K 5/15 Mounting arrangements for bearing-shields or end plates
- H02K 5/16 Means for supporting bearings, e.g. insulating supports or means for fitting bearings in the bearing-shields
- H02K 5/18 with ribs or fins for improving heat transfer
- H02K 5/2 with channels or ducts for flow of cooling medium
- H02K 5/22 Auxiliary parts of casings not covered by groups , e.g. shaped to form connection boxes or terminal boxes
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