B23K 20/14
Preventing or minimising gas access, or using protective gases or vacuum during
Official title: Preventing or minimising gas access, or using protective gases or vacuum during welding (formed by material interposed between workpieces B23K20/18)
B23K20/14 (Preventing or minimising gas access, or using protective gases or vacuum during) appears on 109 US grants and 85 published applications in this corpus.
Search patents in B23K- Granted patents
- 109
- Published applications
- 85
- Assignees
- 88
- Inventors
- 264
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 4 |
| 2004 | 2 | 1 |
| 2005 | 4 | 3 |
| 2006 | 0 | 3 |
| 2007 | 2 | 2 |
| 2008 | 1 | 5 |
| 2009 | 2 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 13 |
| 2015 | 4 | 6 |
| 2016 | 6 | 3 |
| 2017 | 7 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 4 |
| 2020 | 1 | 2 |
| 2021 | 1 | 4 |
| 2022 | 1 | 2 |
| 2023 | 4 | 8 |
| 2024 | 2 | 6 |
| 2025 | 4 | 6 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Automated portable friction welding system and method of operation24 Mar 2026US 12,583,055 B2Fusematic Corporation
- Wire guide module, and ultrasonic wire bonder therewith20 Jan 2026US 12,528,135 B2
- Method and system for joining metal workpieces to provide a workpiece assembly28 Oct 2025US 12,454,025 B2
- Metal jointed body, semiconductor device, wave guide tube, and method for joining members to be joined9 Sep 2025US 12,412,861 B2Mitsubishi Electric Corporation
- Nickel-carbon and nickel-cobalt-carbon brazes and brazing processes for joining ceramics and metals and semiconductor processing and industrial equipment using same26 Aug 2025US 12,397,379 B2Watlow Electric Manufacturing Company
- Method for diffusion bonding nickel alloys and austenitic stainless steel5 Jun 2025US 2025/0178120 A1
- Method for connecting nickel ferrite-based ceramic inert anode and metal conductive block22 May 2025US 2025/0162061 A1Zhengzhou Non-Ferrous Metals Research Institute Co. Ltd of Chalco
- Systems, devices, and methods for surface preparation for bond enhancement in additive deposition processes15 May 2025US 2025/0153267 A1Blue Origin, LLC
- Plurality of Studs being Friction Welded to an Exterior Surface of a Curved Structure having a Block Patch and a Member between the Exterior Surface and the Studs15 May 2025US 2025/0153269 A1
- Multi-Zone Blade Fabrication24 Apr 2025US 2025/0129721 A1Rtx Corporation
Most cited
By later US patents
- Property of bonded metal, including forming material of nickel-titatium alloy, and the method of manufacturing the same83US 5,431,506 AFurukawa Electric Co., Ltd. · 1995
- Method of bonding a sputter target-backing plate assembly assemblies produced thereby61US 5,230,459 ATosoh SMD, Inc. · 1993
- Method for fabrication of honeycomb structures55US 4,117,970 ARockwell International Corporation · 1978
- Super plastic forming method with heat treated seals53US 4,603,808 ARockwell International Corporation · 1986
- In-situ repair method for a turbomachinery component45US 6,010,746 AUnited Technologies Corporation · 2000