G05D 23/19
Control of temperature: characterised by the use of electric means
Official title: characterised by the use of electric means {(G05D23/1393 takes precedence)}
G05D23/19 (Control of temperature: characterised by the use of electric means) appears on 7,973 US grants and 6,051 published applications in this corpus.
Search patents in G05D- Granted patents
- 7,973
- Published applications
- 6,051
- Assignees
- 3,044
- Inventors
- 14,177
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 91 | 0 |
| 1977 | 89 | 0 |
| 1978 | 103 | 0 |
| 1979 | 74 | 0 |
| 1980 | 133 | 0 |
| 1981 | 144 | 0 |
| 1982 | 161 | 0 |
| 1983 | 149 | 0 |
| 1984 | 179 | 0 |
| 1985 | 166 | 0 |
| 1986 | 136 | 0 |
| 1987 | 173 | 0 |
| 1988 | 141 | 0 |
| 1989 | 156 | 0 |
| 1990 | 127 | 0 |
| 1991 | 127 | 0 |
| 1992 | 149 | 0 |
| 1993 | 137 | 0 |
| 1994 | 151 | 0 |
| 1995 | 124 | 0 |
| 1996 | 107 | 0 |
| 1997 | 102 | 0 |
| 1998 | 110 | 0 |
| 1999 | 104 | 0 |
| 2000 | 89 | 0 |
| 2001 | 102 | 29 |
| 2002 | 117 | 97 |
| 2003 | 113 | 111 |
| 2004 | 93 | 126 |
| 2005 | 78 | 117 |
| 2006 | 104 | 134 |
| 2007 | 74 | 142 |
| 2008 | 62 | 140 |
| 2009 | 82 | 192 |
| 2010 | 100 | 175 |
| 2011 | 106 | 199 |
| 2012 | 168 | 300 |
| 2013 | 170 | 341 |
| 2014 | 206 | 462 |
| 2015 | 246 | 386 |
| 2016 | 263 | 338 |
| 2017 | 320 | 310 |
| 2018 | 344 | 435 |
| 2019 | 351 | 337 |
| 2020 | 352 | 297 |
| 2021 | 262 | 286 |
| 2022 | 230 | 302 |
| 2023 | 246 | 269 |
| 2024 | 238 | 224 |
| 2025 | 206 | 179 |
| 2026 | 118 | 123 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G05D 23/20With sensing elements having variation of electric or magnetic properties with change1,933
- G05D 23/1917Using digital means1,924
- G05D 23/1927Using a plurality of sensors1,704
- G05D 23/1902Characterised by the use of a variable reference value1,628
- G05D 23/1919Characterised by the type of controller1,368
- G05D 23/1906Using an analogue comparing device808
- G05D 23/275With sensing element expanding, contracting, or fusing in response to changes of365
- G05D 23/1951With control of the working time of a temperature controlling device220
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Most cited
By later US patents
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- Power controller and method of operating an electrical smoking system692US 6,040,560 APhilip Morris Incorporated · 2000