G01F 1/699
By control of a separate heating or cooling element
Official title: by control of a separate heating or cooling element
G01F1/699 (By control of a separate heating or cooling element) appears on 152 US grants and 115 published applications in this corpus.
Search patents in G01F- Granted patents
- 152
- Published applications
- 115
- Assignees
- 64
- Inventors
- 228
- Latest grant
- 22 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 3 |
| 2002 | 3 | 2 |
| 2003 | 8 | 6 |
| 2004 | 5 | 10 |
| 2005 | 9 | 6 |
| 2006 | 8 | 7 |
| 2007 | 5 | 5 |
| 2008 | 4 | 12 |
| 2009 | 12 | 9 |
| 2010 | 7 | 3 |
| 2011 | 4 | 1 |
| 2012 | 2 | 4 |
| 2013 | 3 | 4 |
| 2014 | 3 | 4 |
| 2015 | 3 | 10 |
| 2016 | 5 | 5 |
| 2017 | 8 | 4 |
| 2018 | 7 | 7 |
| 2019 | 5 | 3 |
| 2020 | 5 | 3 |
| 2021 | 1 | 1 |
| 2022 | 3 | 2 |
| 2023 | 1 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
- Thermal type flowmeter22 Jul 2025US 12,366,474 B1Toflo Corporation
- Thermal sensor device14 May 2024US 11,982,555 B2Hitachi Astemo, Ltd.
- Micromachined thermal time-of-flight fluidic concentration metering device12 Mar 2024US 11,927,555 B2Siargo Ltd.
- Detection of contaminations on a sensing surface of a thermal sensor13 Jun 2023US 11,674,833 B2Sensirion AG
- Method and device for controlling a heating element for heating a sensor element of a mass air-flow sensor for a vehicle and mass air-flow sensor system for a vehicle17 May 2022US 11,333,093 B2Robert Bosch GmbH
- Sensor arrangement3 Jul 2025US 2025/0216235 A1Hahn-Schickard-Gesellschaft FüR Angewandte Forschung E. V.
- Sensor arrangement3 Jul 2025US 2025/0216349 A1Hahn-Schickard-Gesellschaft FüR Angewandte Forschung E. V.
- Wearable thermal sensors, systems and methods thereof6 Mar 2025US 2025/0081293 A1Rhaeos, Inc.
- Air flow compensated temperature transmitter and measuring method29 Aug 2024US 2024/0288313 A1Produal Oy
- Micromachined thermal time-of-flight fluidic concentration metering device1 Dec 2022US 2022/0381716 A1Siargo Ltd.
Most cited
By later US patents
- Flow sensor243US 4,478,077 AHoneywell Inc. · 1984
- Integrated flow sensor58US 5,965,813 AIndustry Technology Research Institute · 1999
- Integrated semiconductor resistance temperature sensor and resistive heater55US 4,808,009 ARosemount Inc. · 1989
- Thermal flowmeter with fluid descriminant function50US 6,681,624 B2Mitsui Mining & Smelting Co., Ltd. · 2004
- Slotted diaphragm semiconductor device36US 4,581,928 AHoneywell Inc. · 1986