G01F 7/00
Volume-flow measuring devices with two or more measuring ranges
Official title: Volume-flow measuring devices with two or more measuring ranges; Compound meters
G01F7/00 (Volume-flow measuring devices with two or more measuring ranges) appears on 256 US grants and 212 published applications in this corpus.
Search patents in G01F- Granted patents
- 256
- Published applications
- 212
- Assignees
- 174
- Inventors
- 584
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 6 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 1 |
| 2002 | 6 | 5 |
| 2003 | 2 | 1 |
| 2004 | 0 | 3 |
| 2005 | 3 | 4 |
| 2006 | 4 | 8 |
| 2007 | 2 | 2 |
| 2008 | 5 | 7 |
| 2009 | 4 | 8 |
| 2010 | 6 | 7 |
| 2011 | 5 | 6 |
| 2012 | 0 | 3 |
| 2013 | 3 | 12 |
| 2014 | 7 | 5 |
| 2015 | 8 | 9 |
| 2016 | 5 | 7 |
| 2017 | 8 | 9 |
| 2018 | 3 | 32 |
| 2019 | 12 | 14 |
| 2020 | 17 | 21 |
| 2021 | 22 | 18 |
| 2022 | 17 | 13 |
| 2023 | 14 | 6 |
| 2024 | 14 | 6 |
| 2025 | 3 | 3 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid consumption measurement system and method20 Jan 2026US 12,529,588 B2Cummins Power Generation Inc.
- System for measuring the flow rate of a fluid medium30 Dec 2025US 12,510,393 B2Arag S.R.L.
- Automated adjustable geared orifice flow meter4 Nov 2025US 12,460,956 B2Saudi Arabian Oil Company
- System and method for switched measuring of flow tubes of a flow meter28 Oct 2025US 12,455,180 B2Honeywell International Inc.
- Flow through pressure sensor structured to remove dead volume31 Dec 2024US 12,181,328 B2Illinois Tool Works Inc.
- High bypass fluid quality control system6 Aug 2026US 2026/0227220 A1Gammon Technical Products, Inc.
- Flow sensor22 Jan 2026US 2026/0022956 A1Honeywell UK Limited
- Flow meter11 Sep 2025US 2025/0283745 A1Dab Pumps S.P.A.
- A gas flow measurement device3 Jul 2025US 2025/0216236 A1BPC Instruments AB
- Flow Through Pressure Sensor26 Jun 2025US 2025/0207963 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Delivery of aerosol medications for inspiration598US 5,404,871 AAradigm Corporation · 1995
- System and method for gas flow verification474US 7,376,520 B2Lam Research Corporation · 2008
- Automatic aerosol medication delivery system and methods279US 5,394,866 AAradigm Corporation · 1995
- Method for releasing controlled amount of aerosol medication273US 5,608,647 AAradigm Corporation · 1997
- Method and apparatus for releasing a controlled amount of aerosol medication over a selectable time interval219US 5,392,768 AAradigm Corporation · 1995