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PCE
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DIFF Subgroup
G01N 3/30

by applying a single impulsive force, e.g. by falling weight

Introduced: September 1968

Title

Titles differ between systems:

IPC: by applying a single impulsive force

CPC: by applying a single impulsive force, e.g. by falling weight

Full Title

Full titles differ between systems:

IPC:

Investigating strength properties of solid materials by application of mechanical stress > by applying a single impulsive force

CPC:

Investigating strength properties of solid materials by application of mechanical stress > by applying a single impulsive force, e.g. by falling weight

IPC and CPC are identically structured here. All 5 subcodes exist in both systems.

IPC defines codes here since 2000.

Child Classifications

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  • G01N 3/303 generated only by free-falling weight since 2000 IPC+CPC Available in IPC and CPC
  • G01N 3/307 generated by a compressed or tensile-stressed spring; generated by pneumatic or hydraulic means since 2000 IPC+CPC Available in IPC and CPC
  • G01N 3/31 generated by a rotating fly-wheel since 2000 IPC+CPC Available in IPC and CPC
  • G01N 3/313 generated by explosives since 2000 IPC+CPC Available in IPC and CPC
  • G01N 3/317 generated by electromagnetic means since 2000 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

Class G01,2013–2023, 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)

Class G01,2013–2023, 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