IPC Subgroup
G01N 30/02 Column chromatography
Introduced: January 1985
Last revised: January 2006
Full Title
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography > Column chromatography
Classification Context
- Section:
- PHYSICS
- Class:
- MEASURING; TESTING
- Subclass:
- INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
9 direct subcodes
Child Classifications
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- G01N 30/04 Preparation or injection of sample to be analysed
- G01N 30/26 Conditioning of the fluid carrier; Flow patterns
- G01N 30/5 Conditioning of the sorbent material or stationary liquid
- G01N 30/6 Construction of the column
- G01N 30/62 Detectors specially adapted therefor
- G01N 30/8 Fraction collectors
- G01N 30/84 Preparation of the fraction to be distributed
- G01N 30/86 Signal analysis
- G01N 30/88 Integrated analysis systems specially adapted therefor, not covered by a single one of groups
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