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PCE
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CPC Subgroup
H01H 33/94

this movement being effected solely due to the pressure caused by the arc itself or by an auxiliary arc

Full Title

High-tension or heavy-current switches with arc-extinguishing or arc-preventing means > Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid > the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts > this movement being effected solely due to the pressure caused by the arc itself or by an auxiliary arc

2 direct subcodes

Child Classifications

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  • H01H 33/95 the arc-extinguishing fluid being air or gas
  • H01H 33/96 the arc-extinguishing fluid being liquid, e.g. oil

Top Applicants

Top 10 applicants by patent filingsfor class H01, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 37,897
  2. TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY TW 36,116
  3. APPLIED MATERIALS US 21,640
  4. LG ENERGY SOLUTION KR 20,770
  5. LG CHEM KR 19,835
  6. TOKYO ELECTRON JP 18,519
  7. ROBERT BOSCH DE 14,595
  8. INTEL CORPORATION US 13,580
  9. MURATA MANUFACTURING COMPANY JP 12,151
  10. SAMSUNG SDI COMPANY KR 12,080