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DIFF Class Not Allocatable
G01

MEASURING; TESTING

Description

Class G01 encompasses instruments, apparatus, and methods for measuring and testing physical quantities and phenomena across diverse domains. This broadly inclusive classification covers measurement devices ranging from simple scales and thermometers to sophisticated optical, electrical, and mechanical instruments for quantifying properties such as length, mass, temperature, pressure, velocity, and radiation. The class also includes testing equipment and methodologies for determining material properties, performance characteristics, and conformance to standards. Adjacent classes G02 (Optics) and G03 (Photography) handle specialized optical and photographic measurement systems, while G04 covers timing instruments specifically.

IPC and CPC are identically structured here. All 18 subcodes exist in both systems.

14 shared codes have differing titles between IPC and CPC.

Child Classifications

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Top Applicants

Top Applicants (IPC)

2013–2023, worldwide · Source: EPO PATSTAT

  1. SGCC(STATE GRID CORPORATION OF CHINA) 41,447
  2. CHINESE ACADEMY OF SCIENCES 32,952
  3. ROBERT BOSCH DE 16,470
  4. SAMSUNG ELECTRONICS COMPANY KR 10,052
  5. SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
  6. ZHEJIANG UNIVERSITY 9,529
  7. GUANGDONG POWER GRID CORPORATION 8,615
  8. TSINGHUA UNIVERSITY 7,805
  9. HALLIBURTON ENERGY SERVICES GROUP US 7,796
  10. QUALCOMM US 7,171

Top Applicants (CPC)

2013–2023, worldwide · Source: EPO PATSTAT

  1. CHINESE ACADEMY OF SCIENCES 21,460
  2. ROBERT BOSCH DE 17,801
  3. SGCC(STATE GRID CORPORATION OF CHINA) 17,347
  4. SAMSUNG ELECTRONICS COMPANY KR 13,192
  5. QUALCOMM US 9,900
  6. HALLIBURTON ENERGY SERVICES GROUP US 9,742
  7. PHILIPS ELECTRONICS NL 7,249
  8. MITSUBISHI ELECTRIC CORPORATION JP 6,503
  9. ZHEJIANG UNIVERSITY 6,414
  10. DENSO CORPORATION JP 6,382