IPC Main Group
B23K 11/00 Resistance welding; Severing by resistance heating
Introduced: September 1968
Last revised: January 2006
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- Subclass:
- SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
13 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 11/1 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 11/3 Features relating to electrodes
- B23K 11/34 Preliminary treatment
- B23K 11/36 Auxiliary equipment
Top Applicants
Top 10 applicants by patent filingsfor class B23, 2013–2023, worldwide · Source: EPO PATSTAT
- ITW (ILLINOIS TOOL WORKS) US 3,407
- FANUC JP 3,120
- DISCO ABRASIVE SYSTEM 2,777
- HAN'S LASER TECHNOLOGY INDUSTRY GROUP COMPANY 2,629
- ROBERT BOSCH DE 2,468
- FANUC 2,273
- DISCO CORPORATION JP 2,267
- GE (GENERAL ELECTRIC COMPANY) US 1,611
- CHINESE ACADEMY OF SCIENCES 1,534
- ISCAR IL 1,499