A47J 27/21058
Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling
Official title: {Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling of the water (A47J27/21158 takes precedence)}
A47J27/21058 (Control devices to avoid overheating, i.e. "dry" boiling, or to detect boiling) appears on 123 US grants and 138 published applications in this corpus.
Search patents in A47J- Granted patents
- 123
- Published applications
- 138
- Assignees
- 75
- Inventors
- 269
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 2 |
| 2003 | 1 | 2 |
| 2004 | 3 | 2 |
| 2005 | 1 | 3 |
| 2006 | 3 | 3 |
| 2007 | 0 | 1 |
| 2008 | 2 | 6 |
| 2009 | 1 | 6 |
| 2010 | 4 | 5 |
| 2011 | 0 | 4 |
| 2012 | 4 | 1 |
| 2013 | 1 | 3 |
| 2014 | 3 | 5 |
| 2015 | 2 | 6 |
| 2016 | 4 | 11 |
| 2017 | 5 | 4 |
| 2018 | 4 | 10 |
| 2019 | 6 | 3 |
| 2020 | 7 | 19 |
| 2021 | 5 | 8 |
| 2022 | 7 | 15 |
| 2023 | 7 | 5 |
| 2024 | 14 | 7 |
| 2025 | 7 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- A47J 27/21083With variable operating parameters45
- A47J 27/21066Details concerning the mounting thereof in or on the water boiling vessel36
- A47J 27/21091Of electronic type29
- A47J 27/21108Using a bimetallic element19
- A47J 27/21133Using a fusible material or a shape memory effect [sme] material5
- A47J 27/2115Using a float4
- A47J 27/211Using a thermomagnetic material3
- A47J 27/21141Based on the weight of the water vessel2
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Most cited
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