B23K 13/04
Welding by high-frequency current heating: by conduction heating
Official title: by conduction heating
B23K13/04 (Welding by high-frequency current heating: by conduction heating) appears on 38 US grants and 25 published applications in this corpus.
Search patents in B23K- Granted patents
- 38
- Published applications
- 25
- Assignees
- 28
- Inventors
- 92
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 2 | 2 |
| 2016 | 0 | 0 |
| 2017 | 2 | 2 |
| 2018 | 1 | 4 |
| 2019 | 1 | 1 |
| 2020 | 3 | 4 |
| 2021 | 2 | 1 |
| 2022 | 1 | 1 |
| 2023 | 2 | 1 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- High-frequency welding for headgear27 May 2025US 12,311,609 B2Fisher & Paykel Healthcare Limited
- Al plated welded pipe for hardening use and al plated hollow member and method for producing same22 Apr 2025US 12,281,375 B2Nippon Steel Corporation
- Method and apparatus for friction current joining1 Oct 2024US 12,103,102 B2KUKA Deutschland GmbH
- Al plated welded pipe for hardening use and Al plated hollow member and method for producing same7 Nov 2023US 11,807,924 B2Nippon Steel Corporation
- High frequency welding for headgear17 Oct 2023US 11,787,123 B2Fisher & Paykel Healthcare Limited
- High-frequency welding for headgear21 Aug 2025US 2025/0262825 A1Fisher & Paykel Healthcare Limited
- High-frequency welding for headgear7 Mar 2024US 2024/0075690 A1Fisher & Paykel Healthcare Limited
- Al plated welded pipe for hardening use and al plated hollow member and method for producing same28 Dec 2023US 2023/0416888 A1Nippon Steel Corporation
- Method and Apparatus for Friction Current Joining7 Jul 2022US 2022/0212281 A1KUKA Deutschland GmbH
- High frequency welding for headgear10 Jun 2021US 2021/0170694 A1Fisher & Paykel Healthcare Limited
Most cited
By later US patents
- Welding management apparatus94US 5,360,156 AMeidensha Corporation · 1994
- High-frequency electric resistance welding method using irradiation with a laser beam34US 4,649,256 ANippon Steel Corporation · 1987
- Flexible tubing occlusion sensor25US 5,228,485 AClintec Nutrition Co. · 1993
- Method for metal bonding17US 4,012,616 AGeneral Electric Company · 1977
- Arch geometry to eliminate tubing influence on load cell accuracy17US 5,076,332 AClintec Nitrition Co. · 1991