Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing (measuring or testing processes involving enzymes or microorganisms, compositions or test papers therefor; processes for forming such compositions, condition responsive control in microbiological or enzymological processes C12Q)

Introduced: January 1980

Title

Titles differ between systems:

IPC: Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing

CPC: Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing (measuring or testing processes involving enzymes or microorganisms, compositions or test papers therefor; processes for forming such compositions, condition responsive control in microbiological or enzymological processes C12Q)

Full Title

Full titles differ between systems:

IPC:

Investigating or analysing materials by specific methods not covered by groups > Biological material, e.g. blood, urine; Haemocytometers > Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing

CPC:

Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00 > Biological material, e.g. blood, urine (G01N33/02, G01N33/26, G01N33/44, G01N33/46 take precedence); Haemocytometers (counting blood corpuscules distributed over a surface by scanning the surface G06M11/02) > Chemical analysis of biological material, e.g. blood, urine; Testing involving biospecific ligand binding methods; Immunological testing (measuring or testing processes involving enzymes or microorganisms, compositions or test papers therefor; processes for forming such compositions, condition responsive control in microbiological or enzymological processes C12Q)

Additional Content IPC

Glossary

involving when used in relation to a material includes the testing for the material as well as employing the material as a determinant or reactant in a test for a different material.

Limiting references

measuring or testing processes involving enzymes or microorganisms, other than immunoassay (which is covered by )

Application references

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

Of 24 combined children, 21 exist in both systems.

3 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

IPC defines codes here since 1980.

Child Classifications

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G01N 33/5002 CPC only CPC only
G01N 33/5005 +3 CPC CPC only CPC only
G01N 33/5097 CPC only CPC only
G01N 33/52 Use of compounds or compositions for colorimetric, spectrophotometric or fluorometric investigation, e.g. use of reagent paper since 1980 +3 CPC IPC+CPC Available in IPC and CPC
G01N 33/53 Immunoassay; Biospecific binding assay; Materials therefor since 1985 +3 CPC IPC+CPC Available in IPC and CPC
G01N 33/579 involving limulus lysate since 1985 IPC+CPC Available in IPC and CPC
G01N 33/58 involving labelled substances (G01N33/53 takes precedence) since 1980 +5 CPC IPC+CPC Available in IPC and CPC
G01N 33/62 involving urea since 1980 IPC+CPC Available in IPC and CPC
G01N 33/64 involving ketones since 1980 IPC+CPC Available in IPC and CPC
G01N 33/66 involving blood sugars, e.g. galactose since 1980 IPC+CPC Available in IPC and CPC
G01N 33/68 involving proteins, peptides or amino acids since 1980 +11 CPC IPC+CPC Available in IPC and CPC
G01N 33/70 involving creatine or creatinine since 1980 IPC+CPC Available in IPC and CPC
G01N 33/72 involving blood pigments, e.g. haemoglobin, bilirubin since 1980 +2 CPC IPC+CPC Available in IPC and CPC
G01N 33/74 involving hormones since 1980 +2 CPC IPC+CPC Available in IPC and CPC
G01N 33/80 involving blood groups or blood types since 1980 IPC+CPC Available in IPC and CPC
G01N 33/82 involving vitamins since 1980 IPC+CPC Available in IPC and CPC
G01N 33/84 involving inorganic compounds or pH since 1980 IPC+CPC Available in IPC and CPC
G01N 33/86 involving blood coagulating time since 1980 IPC+CPC Available in IPC and CPC
G01N 33/88 involving prostaglandins since 1980 IPC+CPC Available in IPC and CPC
G01N 33/90 involving iron binding capacity of blood since 1980 IPC+CPC Available in IPC and CPC

Top Applicants

Top Applicants (IPC)

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

Top Applicants (CPC)

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