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PCE
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DIFF Subgroup
H05B 7/20

Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated

Introduced: July 1974

Full Title

Full titles differ between systems:

IPC:

Heating by electric discharge > Heating by arc discharge > Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated

CPC:

Heating by electric discharge (plasma torches H05H1/26) > Heating by arc discharge > Direct heating by arc discharge, i.e. where at least one end of the arc directly acts on the material to be heated, including additional resistance heating by arc current flowing through the material to be heated

No child classifications to compare. This is a leaf node in both IPC and CPC.

Top Applicants

Top Applicants (IPC)

Class H05,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 7,201
  2. PANASONIC INTELLECTUAL PROPERTY 6,828
  3. SEMICONDUCTOR ENERGY LABORATORY COMPANY 3,988
  4. LG ELECTRONICS KR 3,564
  5. PANASONIC INTELLECTUAL PROPERTY JP 3,533
  6. SAMSUNG DISPLAY KR 3,310
  7. FUJI JP 2,870
  8. SAMSUNG ELECTRO-MECHANICS COMPANY KR 2,675
  9. GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 2,665
  10. MURATA MANUFACTURING COMPANY JP 2,634

Top Applicants (CPC)

Class H05,2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 9,981
  2. SAMSUNG DISPLAY KR 5,041
  3. LG ELECTRONICS KR 4,742
  4. PHILIP MORRIS PRODUCTS CH 4,411
  5. PANASONIC INTELLECTUAL PROPERTY JP 3,915
  6. PANASONIC INTELLECTUAL PROPERTY 3,471
  7. SAMSUNG ELECTRO-MECHANICS COMPANY KR 3,210
  8. MURATA MANUFACTURING COMPANY JP 3,191
  9. FUJI JP 2,987
  10. SIGNIFY HOLDING NL 2,907