C12Q 1/6844 Nucleic acid amplification reactions
Introduced: January 2018
Full Title
Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions > involving nucleic acids > Nucleic acid amplification reactions
Classification Context
- Section:
- CHEMISTRY; METALLURGY
- Class:
- BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
- Subclass:
- MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
Filing statistics
IPC C12Q 1/6844 belongs to the parent subclass C12Q, which recorded 266,123 patent applications worldwide between 2013 and 2023. Annual filings grew from 18,925 in 2013 to 25,006 in 2023 (+32%), peaking at 28,115 applications in 2021. 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
8 direct subcodes
Child Classifications
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- C12Q 1/6848 characterised by the means for preventing contamination or increasing the specificity or sensitivity of an amplification reaction
- C12Q 1/6851 Quantitative amplification
- C12Q 1/6853 using modified primers or templates
- C12Q 1/6858 Allele-specific amplification
- C12Q 1/686 Polymerase chain reaction [PCR]
- C12Q 1/6862 Ligase chain reaction [LCR]
- C12Q 1/6865 Promoter-based amplification, e.g. nucleic acid sequence-based amplification [NASBA], self-sustained sequence replication [3SR] or transcription-based amplification system [TAS]
- C12Q 1/6867 Replicase-based amplification, e.g. using Q-beta replicase
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