G01F 25/15
Specially adapted for gas meters
Official title: {specially adapted for gas meters (G01F25/11 - G01F25/14, G01F25/17 take precedence)}
G01F25/15 (Specially adapted for gas meters) appears on 275 US grants and 283 published applications in this corpus.
Search patents in G01F- Granted patents
- 275
- Published applications
- 283
- Assignees
- 152
- Inventors
- 539
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 4 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 0 |
| 2003 | 0 | 9 |
| 2004 | 4 | 3 |
| 2005 | 5 | 4 |
| 2006 | 2 | 9 |
| 2007 | 7 | 6 |
| 2008 | 9 | 7 |
| 2009 | 4 | 8 |
| 2010 | 9 | 5 |
| 2011 | 3 | 7 |
| 2012 | 2 | 6 |
| 2013 | 6 | 11 |
| 2014 | 9 | 10 |
| 2015 | 4 | 10 |
| 2016 | 6 | 17 |
| 2017 | 13 | 17 |
| 2018 | 13 | 12 |
| 2019 | 14 | 20 |
| 2020 | 16 | 22 |
| 2021 | 13 | 17 |
| 2022 | 18 | 15 |
| 2023 | 18 | 26 |
| 2024 | 25 | 18 |
| 2025 | 16 | 12 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fluid flow meter, monitoring system comprising at least one such fluid flow meter and method for operating a fluid flow meter15 Sep 2026US 12,736,391 B2Sick Engineering GmbH
- Methods for regulating flow meters of industrial and commercial units of smart gas, internet of things (IOT) systems and media thereof21 Jul 2026US 12,687,262 B2Chengdu Qinchuan Iot Technology Co., Ltd.
- Method and smart gas internet of things (IoT) system for determining abnormity of ultrasonic metering device and remote adjustment of ultrasonic metering device2 Jun 2026US 12,644,569 B2Chengdu Qinchuan Iot Technology Co., Ltd.
- Method and device for determining a flow rate28 Apr 2026US 12,613,175 B2Sensirion AG
- Flowmeter failure determination method and hydrogen filling apparatus3 Mar 2026US 12,565,969 B2Eneos Corporation
- Methods for determining continuous gas supply time based on smart gas, internet of things (iot) systems and media thereof1 Oct 2026US 2026/0298418 A1Chengdu Qinchuan Iot Technology Co., Ltd.
- Methods and apparatus for respiratory therapy20 Aug 2026US 2026/0241125 A1ResMed Pty Ltd
- Gas supply module, fluid handling system, lithographic apparatus and device manufacturing method13 Aug 2026US 2026/0235962 A1ASML Netherlands B. V.
- Flow path sensing for flow therapy apparatus23 Jul 2026US 2026/0207868 A1Fisher & Paykel Healthcare Limited
- Hydrogen filling apparatus4 Jun 2026US 2026/0153196 A1Eneos Corporation
Most cited
By later US patents
- System and method for gas flow verification474US 7,376,520 B2Lam Research Corporation · 2008
- Thermal mass flowmeter and mass flow controller, flowmetering system and method131US 5,911,238 AEmerson Electric Co. · 1999
- Method and apparatus for detecting and controlling mass flow106US 5,944,048 AEmerson Electric Co. · 1999
- Method and apparatus for detecting and controlling mass flow81US 5,975,126 AEmerson Electric Co. · 1999
- Apparatus and method for pressure fluctuation insensitive mass flow control67US 6,712,084 B2MKS Instruments, Inc. · 2004