DIFF Main Group
C40B 20/00 Methods specially adapted for identifying library members
Introduced: January 2006
IPC and CPC are identically structured here. All 4 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2006.
Child Classifications
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- C40B 20/02 Identifying library members by their fixed physical location on a support or substrate since 2006 IPC+CPC Available in IPC and CPC
- C40B 20/04 Identifying library members by means of a tag, label, or other readable or detectable entity associated with the library members, e.g. decoding processes since 2006 IPC+CPC Available in IPC and CPC
- C40B 20/08 Direct analysis of the library members per se by physical methods, e.g. spectroscopy since 2006 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class C40,2013–2023, worldwide · Source: EPO PATSTAT
- HARVARD UNIVERSITY US 245
- UNIVERSITY OF CALIFORNIA US 195
- ILLUMINA US 130
- STANFORD UNIVERSITY US 130
- TWIST BIOSCIENCE CORPORATION US 120
- CHUGAI PHARMACEUTICAL JP 94
- MIT (MASSACHUSETTS INSTITUTE OF TECHNOLOGY) US 94
- CHINESE ACADEMY OF SCIENCES 92
- BGI SHENZHEN COMPANY CN 89
- 10X GENOMICS US 88
Top Applicants (CPC)
Class C40,2013–2023, worldwide · Source: EPO PATSTAT
- ILLUMINA US 322
- HARVARD UNIVERSITY US 254
- UNIVERSITY OF CALIFORNIA US 205
- TWIST BIOSCIENCE CORPORATION US 187
- ILLUMINA CAMBRIDGE GB 173
- CHUGAI PHARMACEUTICAL JP 144
- STANFORD UNIVERSITY US 133
- CJ CHEILJEDANG CORPORATION KR 102
- MGI TECH COMPANY CN 95
- 10X GENOMICS US 94