G01F 23/246
Thermal devices
Official title: {thermal devices}
G01F23/246 (Thermal devices) appears on 373 US grants and 262 published applications in this corpus.
Search patents in G01F- Granted patents
- 373
- Published applications
- 262
- Assignees
- 243
- Inventors
- 764
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 14 | 0 |
| 1987 | 9 | 0 |
| 1988 | 11 | 0 |
| 1989 | 8 | 0 |
| 1990 | 7 | 0 |
| 1991 | 10 | 0 |
| 1992 | 14 | 0 |
| 1993 | 9 | 0 |
| 1994 | 6 | 0 |
| 1995 | 9 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 1 | 7 |
| 2003 | 10 | 6 |
| 2004 | 5 | 8 |
| 2005 | 7 | 8 |
| 2006 | 4 | 7 |
| 2007 | 5 | 8 |
| 2008 | 5 | 13 |
| 2009 | 3 | 7 |
| 2010 | 8 | 4 |
| 2011 | 6 | 7 |
| 2012 | 3 | 10 |
| 2013 | 7 | 6 |
| 2014 | 5 | 12 |
| 2015 | 6 | 13 |
| 2016 | 13 | 16 |
| 2017 | 12 | 14 |
| 2018 | 13 | 9 |
| 2019 | 16 | 25 |
| 2020 | 10 | 11 |
| 2021 | 13 | 26 |
| 2022 | 27 | 10 |
| 2023 | 5 | 12 |
| 2024 | 12 | 5 |
| 2025 | 2 | 10 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Dual-use level and temperature probe6 Oct 2026US 12,754,081 B2Goodrich Corporation
- Fill level gauge15 Sep 2026US 12,736,385 B2Endress + Hauser GmbH + Co. KG
- Systems and methods for tank level monitoring4 Aug 2026US 12,698,997 B2Copeland Comfort Control LP
- Control system for a liquid filling level and microscope stage including such a system1 Jul 2025US 12,343,727 B2Leica Mikrosysteme GmbH
- Measurement system for the phase level in a smelting furnace18 Feb 2025US 12,228,443 B2Codelcotec SPA
- System and method for measuring a liquid level and estimating cooling capacity of a cold storage container6 Aug 2026US 2026/0227222 A1
- Electric fill level gauge4 Jun 2026US 2026/0153374 A1Endress + Hauser GmbH + Co. KG
- Heated temperature probe and method of using in a fryer vat28 May 2026US 2026/0146884 A1The Frymaster Corporation
- Temperature-normalized filling volume determination in containers21 May 2026US 2026/0139985 A1Endress + Hauser GmbH + Co. KG
- Liquid level sensor21 May 2026US 2026/0139986 A1Ecolab USA Inc.
Most cited
By later US patents
- Fluid monitoring apparatus and method148US 7,878,058 B2Walker Engineering Company · 2011
- Refrigerant level control in a refrigeration system98US 5,655,379 AGeneral Electric Company · 1997
- Ink jet printer with ink supply monitoring means97US 5,136,305 AXerox Corporation · 1992
- Platinum film resistor device85US 4,129,848 ARaytheon Company · 1978
- Material level indicator79US 5,142,909 A1992