CPC Main Group
B23K 11/00 Resistance welding; Severing by resistance heating
16 direct subcodes
Child Classifications
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- B23K 11/02 Pressure butt welding
- B23K 11/04 Flash butt welding
- B23K 11/06 using roller electrodes
- B23K 11/08 Seam welding not restricted to one of the preceding subgroups
- B23K 11/10 Spot welding; Stitch welding
- B23K 11/14 Projection welding
- B23K 11/16 taking account of the properties of the material to be welded
- B23K 11/22 Severing by resistance heating
- B23K 11/24 Electric supply or control circuits therefor
- B23K 11/28 Portable welding equipment
- B23K 11/30 Features relating to electrodes
- B23K 11/34 Preliminary treatment
- B23K 11/36 Auxiliary equipment (B23K11/31 takes precedence)
Top Applicants
Top 10 applicants by patent filingsfor class B23, 2013–2023, worldwide · Source: EPO PATSTAT
- ITW (ILLINOIS TOOL WORKS) US 3,642
- DISCO CORPORATION JP 3,316
- FANUC JP 3,111
- ROBERT BOSCH DE 2,711
- FANUC 2,163
- GE (GENERAL ELECTRIC COMPANY) US 2,113
- ISCAR IL 1,516
- SIEMENS DE 1,459
- LINCOLN GLOBAL US 1,433
- KOBE STEEL JP 1,423