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CPC Subgroup
H02K 33/04

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

Full Title

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

2 direct subcodes

Child Classifications

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  • H02K 33/06 with polarised armatures
  • H02K 33/08 with DC energisation superimposed on AC energisation

Top Applicants

Top 10 applicants by patent filingsfor 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