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IPC Subgroup
G01N 1/1

in the liquid or fluent state

Introduced: September 1968

Last revised: January 2006

Full Title

Sampling; Preparing specimens for investigation > Devices for withdrawing samples > in the liquid or fluent state

Classification Context

Section:
PHYSICS
Class:
MEASURING; TESTING
Subclass:
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

Filing statistics

IPC G01N 1/1 belongs to the parent subclass G01N, which recorded 1,640,918 patent applications worldwide between 2013 and 2023. Annual filings grew from 83,705 in 2013 to 199,434 in 2023 (+138%). The most active applicants in class G01 are SGCC(STATE GRID CORPORATION OF CHINA) (41,447 applications), CHINESE ACADEMY OF SCIENCES (32,952 applications) and ROBERT BOSCH (16,470 applications).

Source: EPO PATSTAT, worldwide filings

Additional Content

liquid or fluent designates materials which can flow, e.g. liquids, including solutions, dispersions and suspensions, as well as semi-liquids, pastes, melts and particulate materials - gases being excluded

5 direct subcodes

Child Classifications

Navigate with arrow keys, Enter to open

  • G01N 1/12 Dippers; Dredgers
  • G01N 1/14 Suction devices, e.g. pumps; Ejector devices
  • G01N 1/16 with provision for intake at several levels
  • G01N 1/18 with provision for splitting samples into portions
  • G01N 1/2 for flowing or falling materials

Top Applicants

Top 10 applicants by patent filingsfor 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