A47J 27/21
Water-boiling vessels
Official title: Water-boiling vessels, e.g. kettles
A47J27/21 (Water-boiling vessels) appears on 398 US grants and 440 published applications in this corpus.
Search patents in A47J- Granted patents
- 398
- Published applications
- 440
- Assignees
- 216
- Inventors
- 877
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 9 | 0 |
| 1996 | 2 | 0 |
| 1997 | 6 | 0 |
| 1998 | 11 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 3 |
| 2002 | 18 | 11 |
| 2003 | 4 | 11 |
| 2004 | 10 | 14 |
| 2005 | 7 | 17 |
| 2006 | 13 | 12 |
| 2007 | 5 | 9 |
| 2008 | 5 | 15 |
| 2009 | 4 | 19 |
| 2010 | 7 | 14 |
| 2011 | 2 | 16 |
| 2012 | 7 | 9 |
| 2013 | 9 | 10 |
| 2014 | 5 | 15 |
| 2015 | 5 | 18 |
| 2016 | 8 | 36 |
| 2017 | 17 | 17 |
| 2018 | 15 | 22 |
| 2019 | 18 | 12 |
| 2020 | 11 | 39 |
| 2021 | 13 | 26 |
| 2022 | 17 | 35 |
| 2023 | 25 | 21 |
| 2024 | 23 | 16 |
| 2025 | 18 | 12 |
| 2026 | 7 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric kettle8 Sep 2026US 12,727,703 B2Kalita Co., Ltd.
- Electric kettle1 Sep 2026US 12,721,464 B2Kalita Co., Ltd.
- Appliance coupler water pumping apparatus1 Sep 2026US 12,721,465 B2Beijing Left Tree Technology Co.LTD
- Wireless power transmission device and control method thereof28 Jul 2026US 12,695,334 B2Samsung Electronics Co., Ltd.
- Noodle boiling apparatus14 Jul 2026US 12,677,977 B2Sodick Co., Ltd.
- Liquid heating appliances with liquid temperature monitoring8 Oct 2026US 2026/0305862 A1Strix Limited
- Control assemblies for cordless liquid heating apparatuses24 Sep 2026US 2026/0291155 A1Strix Limited
- Soak tank overflow management17 Sep 2026US 2026/0272206 A1Heat and Control, Inc.
- An electric kettle and a method of assembly13 Aug 2026US 2026/0232129 A1Aarke AB
- Base unit for a food processor and interchangeable accessory container13 Aug 2026US 2026/0232140 A1
Most cited
By later US patents
- Heated or cooled dishware and drinkware169US 9,035,222 B2Oromo Technologies, Inc. · 2015
- Sous-vide cooker93US 9,220,362 B2Eades Appliance Technology, LLC · 2015
- Cooking apparatus employing centrally located heat source87US 7,166,822 B12007
- Heated or cooled dishware and drinkware82US 9,814,331 B2Ember Technologies, Inc. · 2017
- Cookware lid and handle assemblies80US 6,105,810 ADart Industries Inc. · 2000