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IPC Subclass
H05G

X-RAY TECHNIQUE

Introduced: September 1968

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Subclass:
X-RAY TECHNIQUE

Description

H05G covers X-ray generation, production, and technical applications excluding medical diagnostic imaging and therapeutic irradiation devices. This subclass encompasses X-ray tubes, high-voltage equipment for X-ray production, X-ray diffraction and crystallography apparatus, and industrial X-ray inspection systems. It includes the design of X-ray sources, cooling systems, target materials, and associated electrical circuits necessary for X-ray generation and control. Medical X-ray equipment and therapeutic applications are classified separately in other IPC sections.

Filing statistics

IPC subclass H05G recorded 8,712 patent applications worldwide between 2013 and 2023. Annual filings declined from 1,031 in 2013 to 759 in 2023 (-26%). The most active applicants in class H05 are SAMSUNG ELECTRONICS COMPANY (7,201 applications), PANASONIC INTELLECTUAL PROPERTY (6,828 applications) and SEMICONDUCTOR ENERGY LABORATORY COMPANY (3,988 applications).

Source: EPO PATSTAT, worldwide filings

In class comparison

H05G ranks 5th of 6 subclasses with filings in H05, with 8,712 applications between 2013 and 2023, 0.8% of the class. Annual filings declined 26% from 2013 to 2023, below the class as a whole (+93%).

Subclasses of class H05 by patent applications, 2013–2023
RankSubclassTitleApplicationsShare
1H05K, Printed Circuits; Casings or Constructional Details of Electric Apparatus; Manufacture of Assemblages of Electrical ComponentsPrinted Circuits; Casings or Constructional Details of Electric Apparatus; Manufacture of Assemblages of Electrical Components723,13365.4%
2H05B, Electric Heating; Electric Light Sources Not Otherwise Provided for; Circuit Arrangements for Electric Light Sources, in GeneralElectric Heating; Electric Light Sources Not Otherwise Provided for; Circuit Arrangements for Electric Light Sources, in General317,96328.8%
3H05H, Plasma Technique; Production of Accelerated Electrically-Charged Particles or of Neutrons; Production or Acceleration of Neutral Molecular or Atomic BeamsPlasma Technique; Production of Accelerated Electrically-Charged Particles or of Neutrons; Production or Acceleration of Neutral Molecular or Atomic Beams34,8783.2%
4H05F, Static Electricity; Naturally-Occurring ElectricityStatic Electricity; Naturally-Occurring Electricity19,6591.8%
5H05GX-Ray Technique8,7120.8%
6H05C, Electric Circuits or Apparatus Specially Designed for Use in Equipment for Killing, Stunning, Enclosing or Guiding Living BeingsElectric Circuits or Apparatus Specially Designed for Use in Equipment for Killing, Stunning, Enclosing or Guiding Living Beings6880.1%

Source: EPO PATSTAT, worldwide filings

Additional Content

Investigating or analysing materials by the use of X-rays Apparatus for X-ray photography X-ray tubes TV systems having X-ray input

Related Keywords

CIRCUITS for operating X-ray apparatusDIFFRACTION of X-raysmeasuring or recording EXPOSURE to X-raysIRRADIATION with X-raysX-ray techniquesX-RAY(S) techniques

2 direct subcodes

Child Classifications

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  • H05G 2/00 Apparatus or processes specially adapted for producing X-rays, not involving X-ray tubes, e.g. involving generation of a plasma

Top Applicants

Top 10 applicants by patent filingsfor 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