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PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H05G 1/30

Controlling

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

X-ray apparatus involving X-ray tubes; Circuits therefor > Electrical details > Measuring, controlling or protecting > Controlling

CPC:

X-ray apparatus involving X-ray tubes; Circuits therefor > Electrical details > Measuring, controlling or protecting (measuring X-ray radiation G01T) > Controlling

IPC and CPC are identically structured here. All 8 subcodes exist in both systems.

Child Classifications

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  • H05G 1/32 Supply voltage of the X-ray apparatus or tube IPC+CPC Available in IPC and CPC
  • H05G 1/34 Anode current, heater current or heater voltage of X-ray tube IPC+CPC Available in IPC and CPC
  • H05G 1/36 Temperature of anode; Brightness of image IPC+CPC Available in IPC and CPC
  • H05G 1/46 Combined control of different quantities, e.g. exposure time as well as voltage or current IPC+CPC Available in IPC and CPC
  • H05G 1/48 Compensating the voltage drop occurring at the instant of switching-on of the apparatus IPC+CPC Available in IPC and CPC
  • H05G 1/50 Passing the tube current only during a restricted portion of the voltage waveform IPC+CPC Available in IPC and CPC
  • H05G 1/52 Target size or shape; Direction of electron beam, e.g. in tubes with one anode and more than one cathode IPC+CPC Available in 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