G01F 3/22
For gases
Official title: for gases
G01F3/22 (For gases) appears on 78 US grants and 59 published applications in this corpus.
Search patents in G01F- Granted patents
- 78
- Published applications
- 59
- Assignees
- 55
- Inventors
- 185
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 3 |
| 2012 | 1 | 1 |
| 2013 | 1 | 4 |
| 2014 | 0 | 1 |
| 2015 | 2 | 5 |
| 2016 | 2 | 0 |
| 2017 | 3 | 2 |
| 2018 | 0 | 7 |
| 2019 | 2 | 7 |
| 2020 | 6 | 7 |
| 2021 | 3 | 8 |
| 2022 | 6 | 2 |
| 2023 | 5 | 1 |
| 2024 | 1 | 3 |
| 2025 | 0 | 2 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01F 3/222Characterised by drive mechanism for valves or membrane index mechanism26
- G01F 3/226Characterised by features of meter body or housing15
- G01F 3/227Characterised by the means for transfer of membrane movement information to indicating15
- G01F 3/225Characterised by constructional features of membranes or by means for improving proper14
- G01F 3/221Valves therefor13
Recent patents
- Gas sampling mechanism and gas analysis device having the same6 Oct 2026US 12,754,176 B2Triple Win Technology(Shenzhen) Co. Ltd.
- Gas meter15 Sep 2026US 12,736,373 B2Panasonic Intellectual Property Management Co., Ltd.
- Volume fill airflow measurement18 Jun 2024US 12,013,279 B2Kane USA, Inc.
- Method and system for timely detecting gas pressure irregularities using a gas meter in a power efficient manner14 Nov 2023US 11,815,388 B2Honeywell International Inc.
- Fluid control system24 Oct 2023US 11,796,367 B2Analog Devices, Inc.
- Gas meter and gas meter power consumption management system3 Jul 2025US 2025/0216241 A1Panasonic Intellectual Property Management Co., Ltd.
- Method for evaluating a vibrational event6 Mar 2025US 2025/0076338 A1PIETRO FIORENTINI S.p.A.
- Gas shutoff device, and wireless device for gas shutoff device7 Nov 2024US 2024/0369222 A1Panasonic Intellectual Property Management Co., Ltd.
- Gas meter26 Sep 2024US 2024/0318981 A1Panasonic Intellectual Property Management Co., Ltd.
- Gas sampling mechanism and gas analysis device having the same15 Feb 2024US 2024/0053315 A1Triple Win Technology(Shenzhen) Co. Ltd.
Most cited
By later US patents
- Detection device for detecting and indicating operation of a gas meter17US 4,565,090 A1986
- Calibration system for mechanical gas volume corrector12US 4,674,316 AThe Singer Company · 1987
- Fluid flow rate measuring and controlling apparatus and method for using same12US 5,526,685 AGraseby Andersen Inc. · 1996
- Temperature sensing probe assembly for fluid meter11US 6,523,427 B1Dresser, Inc. · 2003
- Method for making synthetic membranes for a gas meter8US 5,068,074 ASchlumberger Industries · 1991