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PCE
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DIFF Subgroup
H02K 33/04

wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Motors with reciprocating, oscillating or vibrating magnet, armature or coil system > with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs > wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation

CPC:

Motors with reciprocating, oscillating or vibrating magnet, armature or coil system (arrangements for handling mechanical energy structurally associated with motors H02K7/00, e.g. H02K7/06) > with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs > wherein the frequency of operation is determined by the frequency of uninterrupted AC energisation

IPC and CPC are identically structured here. All 2 subcodes exist in both systems.

Child Classifications

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  • H02K 33/06 with polarised armatures IPC+CPC Available in IPC and CPC
  • H02K 33/08 with DC energisation superimposed on AC energisation IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

Class H02,2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 24,515
  2. MITSUBISHI ELECTRIC CORPORATION JP 11,346
  3. SIEMENS DE 9,026
  4. ROBERT BOSCH DE 9,005
  5. SAMSUNG ELECTRONICS COMPANY KR 6,729
  6. GUANGDONG POWER GRID CORPORATION 5,740
  7. DENSO CORPORATION JP 5,077
  8. LG ELECTRONICS KR 5,041
  9. LG INNOTEK COMPANY KR 4,442
  10. TOYOTA MOTOR CORPORATION 4,349