G01F 1/6847
Where sensing or heating elements are not disturbing the fluid flow
Official title: {where sensing or heating elements are not disturbing the fluid flow, e.g. elements mounted outside the flow duct}
G01F1/6847 (Where sensing or heating elements are not disturbing the fluid flow) appears on 380 US grants and 301 published applications in this corpus.
Search patents in G01F- Granted patents
- 380
- Published applications
- 301
- Assignees
- 213
- Inventors
- 712
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 8 | 0 |
| 1985 | 9 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 6 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 7 | 0 |
| 1994 | 9 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 13 | 0 |
| 1999 | 7 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 3 |
| 2002 | 7 | 7 |
| 2003 | 12 | 9 |
| 2004 | 10 | 20 |
| 2005 | 11 | 9 |
| 2006 | 20 | 9 |
| 2007 | 8 | 9 |
| 2008 | 6 | 11 |
| 2009 | 5 | 5 |
| 2010 | 8 | 10 |
| 2011 | 7 | 6 |
| 2012 | 4 | 5 |
| 2013 | 6 | 8 |
| 2014 | 5 | 6 |
| 2015 | 6 | 9 |
| 2016 | 4 | 15 |
| 2017 | 5 | 12 |
| 2018 | 13 | 15 |
| 2019 | 18 | 26 |
| 2020 | 16 | 24 |
| 2021 | 14 | 18 |
| 2022 | 20 | 20 |
| 2023 | 17 | 11 |
| 2024 | 13 | 15 |
| 2025 | 15 | 8 |
| 2026 | 5 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Compact fluid flow sensor6 Oct 2026US 12,754,051 B2Advanced Energy Industries, Inc.
- Method for determining fluid flow characteristics and energy efficiency through temperature differential analysis11 Aug 2026US 12,704,372 B2Dexter Technology, LLC
- Clamp-on thermal meter for non-intrusive flow measurement in a conduit12 May 2026US 12,624,976 B1Advantek Consulting Engineering, Inc.
- Non-invasive plumbing sensor system24 Feb 2026US 12,560,466 B2University of Cincinnati
- Fluid measurement sensor and mass flow controller10 Feb 2026US 12,546,639 B2Beijing Aurasky Electronics Co., Ltd.
- High-temperature mass flow controllers and mass flow sensors1 Oct 2026US 2026/0298681 A1Illinois Tool Works Inc.
- Clamp-On Thermal Meter for Non-Intrusive Flow Measurement in a Conduit10 Sep 2026US 2026/0266644 A1Advantek Consulting Engineering, Inc.
- Measurement sensor for a thermal measurement variable and measurement station comprising such a measurement sensor20 Aug 2026US 2026/0243606 A1Endress+Hauser Wetzer GmbH+Co.KG
- Thermal flow meter23 Jul 2026US 2026/0210745 A1Surpass Industry Co., Ltd.
- Monitoring sites of a fluid delivery infrastructure2 Jul 2026US 2026/0185861 A1Orbis Intelligent Systems, Inc.
Most cited
By later US patents
- Thermal mass flowmeter and mass flow controller, flowmetering system and method131US 5,911,238 AEmerson Electric Co. · 1999
- Thermopile flow sensor113US 5,557,967 APacesetter, Inc. · 1996
- Pulmonary interface system113US 5,676,132 APulmonary Interface, Inc. · 1997
- Method for fabricating a channel device and tube connection112US 5,027,499 AOtto Sensors Corporation · 1991
- Non-invasive fluid flow sensing based on injected heat tracers and indirect temperature monitoring107US 6,386,050 B1Agilent Technologies, Inc. · 2002