B21F 27/12 Making special types or portions of network by methods or means specially adapted therefor
Introduced: September 1968
Last revised: January 2006
Full Title
Making wire network, i.e. wire nets > Making special types or portions of network by methods or means specially adapted therefor
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- Subclass:
- WORKING OR PROCESSING OF METAL WIRE
Filing statistics
IPC B21F 27/12 belongs to the parent subclass B21F, which recorded 67,229 patent applications worldwide between 2013 and 2023. Annual filings grew from 2,053 in 2013 to 9,443 in 2023 (+360%), peaking at 10,492 applications in 2020. The most active applicants in class B21 are JFE STEEL (2,318 applications), JFE STEEL (2,294 applications) and POSCO (POHANG IRON AND STEEL COMPANY) (2,083 applications).
Source: EPO PATSTAT, worldwide filings
5 direct subcodes
Child Classifications
Navigate with arrow keys, Enter to open
- B21F 27/14 Specially bending or deforming free wire ends
- B21F 27/16 for spring mattresses
- B21F 27/18 of meshed work for filters or sieves
- B21F 27/2 of plaster-carrying network
- B21F 27/22 of network for wire-reinforced glass or the like
Top Applicants
Top 10 applicants by patent filingsfor class B21, 2013–2023, worldwide · Source: EPO PATSTAT
- JFE STEEL 2,318
- JFE STEEL JP 2,294
- POSCO (POHANG IRON AND STEEL COMPANY) KR 2,083
- NIPPON STEEL CORPORATION JP 1,650
- NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 1,631
- SMS GROUP DE 1,472
- BAOSHAN IRON & STEEL COMPANY 1,181
- SGCC(STATE GRID CORPORATION OF CHINA) 1,079
- ANHUI JIANGHUAI AUTOMOBILE 984
- HYUNDAI STEEL COMPANY KR 980