CPC Subgroup
G01N 30/02 Column chromatography
Full Title
Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography (G01N3/00, G01N5/00, G01N7/00, G01N9/00, G01N11/00, G01N13/00, G01N15/00, G01N17/00, G01N19/00, G01N21/00, G01N22/00, G01N23/00, G01N24/00, G01N25/00, G01N27/00, G01N29/00 take precedence) > Column chromatography
10 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- G01N 30/04 Preparation or injection of sample to be analysed
- G01N 30/26 Conditioning of the fluid carrier; Flow patterns
- G01N 30/50 Conditioning of the sorbent material or stationary liquid
- G01N 30/60 Construction of the column
- G01N 30/62 Detectors specially adapted therefor
- G01N 30/80 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 the groups G01N30/04 - G01N30/86
Top Applicants
Top 10 applicants by patent filingsfor class G01, 2013–2023, worldwide · Source: EPO PATSTAT
- CHINESE ACADEMY OF SCIENCES 21,460
- ROBERT BOSCH DE 17,801
- SGCC(STATE GRID CORPORATION OF CHINA) 17,347
- SAMSUNG ELECTRONICS COMPANY KR 13,192
- QUALCOMM US 9,900
- HALLIBURTON ENERGY SERVICES GROUP US 9,742
- PHILIPS ELECTRONICS NL 7,249
- MITSUBISHI ELECTRIC CORPORATION JP 6,503
- ZHEJIANG UNIVERSITY 6,414
- DENSO CORPORATION JP 6,382