B23K 11/00
Resistance welding
Official title: Resistance welding; Severing by resistance heating
B23K11/00 (Resistance welding) appears on 3,468 US grants and 2,908 published applications in this corpus.
Search patents in B23K- Granted patents
- 3,468
- Published applications
- 2,908
- Assignees
- 1,446
- Inventors
- 6,596
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 46 | 0 |
| 1977 | 43 | 0 |
| 1978 | 45 | 0 |
| 1979 | 32 | 0 |
| 1980 | 37 | 0 |
| 1981 | 46 | 0 |
| 1982 | 60 | 0 |
| 1983 | 64 | 0 |
| 1984 | 60 | 0 |
| 1985 | 69 | 0 |
| 1986 | 40 | 0 |
| 1987 | 77 | 0 |
| 1988 | 64 | 0 |
| 1989 | 64 | 0 |
| 1990 | 68 | 0 |
| 1991 | 50 | 0 |
| 1992 | 65 | 0 |
| 1993 | 42 | 0 |
| 1994 | 53 | 0 |
| 1995 | 60 | 0 |
| 1996 | 52 | 0 |
| 1997 | 43 | 0 |
| 1998 | 82 | 0 |
| 1999 | 73 | 0 |
| 2000 | 67 | 0 |
| 2001 | 64 | 20 |
| 2002 | 52 | 41 |
| 2003 | 64 | 64 |
| 2004 | 57 | 77 |
| 2005 | 43 | 90 |
| 2006 | 53 | 75 |
| 2007 | 51 | 80 |
| 2008 | 24 | 77 |
| 2009 | 37 | 87 |
| 2010 | 40 | 90 |
| 2011 | 41 | 91 |
| 2012 | 55 | 99 |
| 2013 | 71 | 108 |
| 2014 | 71 | 119 |
| 2015 | 103 | 182 |
| 2016 | 77 | 179 |
| 2017 | 113 | 158 |
| 2018 | 115 | 162 |
| 2019 | 158 | 173 |
| 2020 | 141 | 183 |
| 2021 | 122 | 157 |
| 2022 | 113 | 135 |
| 2023 | 118 | 160 |
| 2024 | 123 | 119 |
| 2025 | 109 | 96 |
| 2026 | 51 | 86 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- B23K 11/30Features relating to electrodes1,026
- B23K 11/10Spot welding981
- B23K 11/002Resistance welding: specially adapted for particular articles or work862
- B23K 11/24Electric supply or control circuits therefor797
- B23K 11/16Taking account of the properties of the material to be welded591
- B23K 11/06Resistance welding: using roller electrodes239
- B23K 11/36Auxiliary equipment239
- B23K 11/14Projection welding224
All 16 subgroupsShow fewer
- B23K 11/08Seam welding not restricted to one of the preceding subgroups211
- B23K 11/34Preliminary treatment164
- B23K 11/04Flash butt welding135
- B23K 11/02Pressure butt welding105
- B23K 11/0013Welding for purposes other than joining45
- B23K 11/28Portable welding equipment43
- B23K 11/0006The welding zone being shielded against the influence of the surrounding atmosphere29
- B23K 11/22Severing by resistance heating19
Recent patents
- Coolant drop prevention system6 Oct 2026US 12,752,364 B2Kyokutoh Co., Ltd.
- System for drawing off the electrode caps from electrode adapters6 Oct 2026US 12,752,365 B2Braeuer Systemtechnik GmbH
- Conductance based control system for additive manufacturing6 Oct 2026US 12,752,374 B2Procada AB
- Method for providing a component assembly for a motor vehicle, and component assembly for a motor vehicle29 Sep 2026US 12,746,615 B2Bayerische Motoren Werke Aktiengesellschaft
- Welded rail29 Sep 2026US 12,747,483 B2Nippon Steel Corporation
- Manufacturing method of flash butt welded rail1 Oct 2026US 2026/0295710 A1Nippon Steel Corporation
- Solid-phase joining method and solid-phase joining apparatus1 Oct 2026US 2026/0295711 A1DAIHEN Corporation
- Intravascular device including high voltage coaxial conductor wiring1 Oct 2026US 2026/0295712 A1Biosense Webster (Israel) Ltd.
- Projection welded joint and method for producing same1 Oct 2026US 2026/0297711 A1Jfe Steel Corporation
- Zero Emission Railroad Tracks Welder17 Sep 2026US 2026/0273646 A1
Most cited
By later US patents
- Concurrent ultrasonic weld evaluation system357US 4,712,722 AEG&G, Inc. · 1987
- System and method providing distributed welding architecture356US 6,624,388 B1The Lincoln Electric Company · 2003
- Welded stent having a welded soluble core231US 9,675,477 B2Medtronic Vascular, Inc. · 2017
- Spot welding system and method for sensing welding conditions in real time177US 6,506,997 B2Massachusetts Institute of Technology · 2003
- Method and system for assessing quality of spot welds176US 7,132,617 B2DaimlerChrysler AG · 2006