CPC Subgroup
B21J 15/10 Riveting machines (electric heating elements H05B)
Full Title
Riveting > Riveting machines (electric heating elements H05B)
7 direct subcodes
Child Classifications
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- B21J 15/12 with tools or tool parts having a movement additional to the feed movement, e.g. spin
- B21J 15/14 specially adapted for riveting specific articles, e.g. brake lining machines
- B21J 15/16 Drives for riveting machines; Transmission means therefor
- B21J 15/28 Control devices specially adapted to riveting machines not restricted to one of the preceding subgroups
- B21J 15/30 Particular elements, e.g. supports; Suspension equipment specially adapted for portable riveters
- B21J 15/36 Rivet sets, i.e. tools for forming heads; Mandrels for expanding parts of hollow rivets
Top Applicants
Top 10 applicants by patent filingsfor class B21, 2013–2023, worldwide · Source: EPO PATSTAT
- JFE STEEL JP 2,667
- NIPPON STEEL CORPORATION JP 2,049
- POSCO (POHANG IRON AND STEEL COMPANY) KR 1,967
- NSSMC (NIPPON STEEL & SUMITOMO METAL) JP 1,800
- SMS GROUP DE 1,538
- JFE STEEL 1,150
- ARCELORMITTAL LU 1,142
- BAOSHAN IRON & STEEL COMPANY 821
- HYUNDAI STEEL COMPANY KR 808
- THYSSENKRUPP STEEL EUROPE DE 660