IPC Main Group
G01N 33/00 Investigating or analysing materials by specific methods not covered by groups
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
Additional Content
Determining the germinating capacity of seeds Measuring characteristics of blood in vivo, e.g. gas concentration within the blood, pH-value of blood, for medical or veterinary diagnosis Apparatus for enzymology or microbiology Measuring or testing processes involving enzymes or microorganisms, other than immunoassay (which is covered by ) investigation of foundation soil or ground water in-situ
15 direct subcodes
Child Classifications
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- G01N 33/02 Food
- G01N 33/15 Medicinal preparations
- G01N 33/18 Water
- G01N 33/2 Metals
- G01N 33/22 Fuels; Explosives
- G01N 33/24 Earth materials
- G01N 33/26 Oils; Viscous liquids; Paints; Inks
- G01N 33/34 Paper
- G01N 33/36 Textiles
- G01N 33/38 Concrete; Lime; Mortar; Gypsum; Bricks; Ceramics; Glass
- G01N 33/4 Grinding-materials
- G01N 33/42 Road-making materials
- G01N 33/44 Resins; Plastics; Rubber; Leather
- G01N 33/46 Wood
- G01N 33/48 Biological material, e.g. blood, urine; Haemocytometers
Top Applicants
Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT
- SGCC(STATE GRID CORPORATION OF CHINA) 41,447
- CHINESE ACADEMY OF SCIENCES 32,952
- ROBERT BOSCH DE 16,470
- SAMSUNG ELECTRONICS COMPANY KR 10,052
- SINOPEC (CHINA PETROCHEMICAL CORPORATION) 9,573
- ZHEJIANG UNIVERSITY 9,529
- GUANGDONG POWER GRID CORPORATION 8,615
- TSINGHUA UNIVERSITY 7,805
- HALLIBURTON ENERGY SERVICES GROUP US 7,796
- QUALCOMM US 7,171