B23K 3/04
Heating appliances
B23K3/04 (Heating appliances) appears on 449 US grants and 410 published applications in this corpus.
Search patents in B23K- Granted patents
- 449
- Published applications
- 410
- Assignees
- 248
- Inventors
- 983
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 7 | 0 |
| 1987 | 15 | 0 |
| 1988 | 9 | 0 |
| 1989 | 11 | 0 |
| 1990 | 10 | 0 |
| 1991 | 17 | 0 |
| 1992 | 13 | 0 |
| 1993 | 6 | 0 |
| 1994 | 11 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 4 |
| 2002 | 9 | 5 |
| 2003 | 4 | 4 |
| 2004 | 5 | 5 |
| 2005 | 1 | 7 |
| 2006 | 5 | 6 |
| 2007 | 4 | 3 |
| 2008 | 1 | 4 |
| 2009 | 2 | 16 |
| 2010 | 4 | 9 |
| 2011 | 4 | 8 |
| 2012 | 6 | 13 |
| 2013 | 8 | 18 |
| 2014 | 14 | 19 |
| 2015 | 24 | 31 |
| 2016 | 19 | 33 |
| 2017 | 27 | 33 |
| 2018 | 20 | 15 |
| 2019 | 19 | 26 |
| 2020 | 26 | 25 |
| 2021 | 20 | 29 |
| 2022 | 20 | 18 |
| 2023 | 24 | 17 |
| 2024 | 16 | 27 |
| 2025 | 16 | 21 |
| 2026 | 14 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Repair of solder bumps29 Sep 2026US 12,746,613 B2Orbotech Ltd.
- Method and automatic brazing apparatus for flame brazing control in copper-aluminum welding15 Sep 2026US 12,734,599 B2Shaoxing Daishin Xinrui Brazing Equipment Co., Ltd.
- Network for controlling soldering systems and method therefor8 Sep 2026US 12,728,469 B2ERSA GmbH
- Self correcting oven technology11 Aug 2026US 12,703,036 B2Jabil Inc.
- Solder reflow apparatus and method of manufacturing an electronic device4 Aug 2026US 12,697,671 B2Samsung Electronics Co., Ltd.
- Frame and reflow oven24 Sep 2026US 2026/0284767 A1Illinois Tool Works Inc.
- Heater cartridge and hot air device17 Sep 2026US 2026/0273641 A1
- Reflow oven3 Sep 2026US 2026/0257293 A1Illinois Tool Works Inc.
- Brazing process23 Jul 2026US 2026/0208280 A1Optoprim S.R.L.
- Preheating mechanism of jet soldering apparatus, and jet soldering apparatus16 Jul 2026US 2026/0199996 A1Koki Tec Corp.
Most cited
By later US patents
- Heater-sensor complex502US 6,054,678 AHakko Corporation · 2000
- Shielded heating element having intrinsic temperature control281US 4,701,587 AMetcal, Inc. · 1987
- Autoregulating heater230US 4,752,673 AMetcal, Inc. · 1988
- Autoregulating, electrically shielded heater222US 4,695,713 AMetcal, Inc. · 1987
- Slotted autoregulating heater200US 4,717,814 AMetcal, Inc. · 1988