Enzymes, e.g. ligases (6.); Proenzymes; Compositions thereof; Processes for preparing, activating, inhibiting, separating, or purifying enzymes

Introduced: January 1980

Last revised: January 2006

Classification Context

Section:: CHEMISTRY; METALLURGY
Class:: BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
Subclass:: MICROORGANISMS OR ENZYMES; COMPOSITIONS THEREOF; PROPAGATING, PRESERVING, OR MAINTAINING MICROORGANISMS; MUTATION OR GENETIC ENGINEERING; CULTURE MEDIA

Filing statistics

IPC C12N 9/00 belongs to the parent subclass C12N, which recorded 650,624 patent applications worldwide between 2013 and 2023. Annual filings grew from 43,581 in 2013 to 68,426 in 2023 (+57%), peaking at 74,521 applications in 2022. The most active applicants in class C12 are CHINESE ACADEMY OF SCIENCES (10,330 applications), HARVARD UNIVERSITY (7,308 applications) and UNIVERSITY OF CALIFORNIA (6,383 applications).

Source: EPO PATSTAT, worldwide filings

Related Keywords

ENZYMES

9 direct subcodes

Child Classifications

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C12N 9/02 Oxidoreductases (1.), e.g. luciferase
C12N 9/1 Transferases (2.)
C12N 9/14 Hydrolases (3.)
C12N 9/88 Lyases (4.)
C12N 9/9 Isomerases (5.)
C12N 9/94 Pancreatin
C12N 9/96 Stabilising an enzyme by forming an adduct or a composition; Forming enzyme conjugates
C12N 9/98 Preparation of granular or free-flowing enzyme compositions
C12N 9/99 Enzyme inactivation by chemical treatment

Top Applicants

Top 10 applicants by patent filingsfor class C12, 2013–2023, worldwide · Source: EPO PATSTAT

CHINESE ACADEMY OF SCIENCES 10,330
HARVARD UNIVERSITY US 7,308
UNIVERSITY OF CALIFORNIA US 6,383
JIANGNAN UNIVERSITY 5,144
MONSANTO TECHNOLOGY US 4,121
PIONEER HI-BRED INTERNATIONAL US 3,630
REGENERON PHARMACEUTICALS US 3,515
CNRS (CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE) FR 3,499
INSERM (INSTITUT NATIONAL DE LA SANTE ET DE LA RECHERCHE MEDICALE) FR 3,371
CJ CHEILJEDANG CORPORATION KR 3,361