G05D 23/185
Control of temperature: with auxiliary non-electric power
Official title: with auxiliary non-electric power
G05D23/185 (Control of temperature: with auxiliary non-electric power) appears on 280 US grants and 152 published applications in this corpus.
Search patents in G05D- Granted patents
- 280
- Published applications
- 152
- Assignees
- 127
- Inventors
- 383
- Latest grant
- 10 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 9 | 0 |
| 1978 | 11 | 0 |
| 1979 | 11 | 0 |
| 1980 | 22 | 0 |
| 1981 | 21 | 0 |
| 1982 | 20 | 0 |
| 1983 | 8 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 0 | 0 |
| 2011 | 2 | 3 |
| 2012 | 2 | 2 |
| 2013 | 2 | 27 |
| 2014 | 4 | 16 |
| 2015 | 6 | 7 |
| 2016 | 15 | 21 |
| 2017 | 20 | 25 |
| 2018 | 14 | 11 |
| 2019 | 18 | 10 |
| 2020 | 18 | 14 |
| 2021 | 12 | 4 |
| 2022 | 7 | 3 |
| 2023 | 6 | 1 |
| 2024 | 5 | 4 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G05D 23/1852With sensing element expanding and contracting in response to change of temperature55
- G05D 23/1858By varying the mixing ratio of fluids having different temperatures52
- G05D 23/1854With bimetallic element19
- G05D 23/1856With sensing element responsive to pressure or volume change in a confined15
Recent patents
- Dual-purpose heater and fluid flow measurement system10 Jun 2025US 12,326,107 B2Watlow Electric Manufacturing Company
- Virtual sensing system25 Mar 2025US 12,258,898 B2Watlow Electric Manufacturing Company
- Dual-purpose heater and fluid flow measurement system16 Jul 2024US 12,037,933 B2Watlow Electric Manufacturing Company
- Air cleaner14 May 2024US 11,982,288 B2LG Electronics Inc.
- Virtual sensing system30 Apr 2024US 11,970,964 B2Watlow Electric Manufacturing Company
- Techniques for temperature stabilizing at least one device5 Mar 2026US 2026/0068093 A1Honeywell International Inc.
- Dual-purpose heater and fluid flow measurement system3 Oct 2024US 2024/0328342 A1Watlow Electric Manufacturing Company
- Virtual sensing system22 Aug 2024US 2024/0280042 A1Watlow Electric Manufacturing Company
- Air cleaner1 Aug 2024US 2024/0255002 A1LG Electronics Inc.
- Hot water tank with thermal mixing valve18 Jan 2024US 2024/0019173 A1National Machine Company
Most cited
By later US patents
- Multiple load integrated fluid control units51US 4,199,101 AJohnson Controls GmbH · 1980
- Calibration apparatus for air flow controllers35US 4,591,093 AE-Zee Company · 1986
- Modular valve34US 3,989,058 ARobertshaw Controls Company · 1976
- Heat generator for vehicle heating system32US 6,082,316 AKabushiki Kaisha Toyoda Jidoshokki Seisakusho · 2000
- Thermal timer valve27US 4,221,204 APierburg GmbH · 1980