G01N 2291/02836
Flow rate, liquid level
G01N2291/02836 (Flow rate, liquid level) appears on 797 US grants and 536 published applications in this corpus.
Search patents in G01N- Granted patents
- 797
- Published applications
- 536
- Assignees
- 450
- Inventors
- 1,449
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 12 | 0 |
| 1979 | 5 | 0 |
| 1980 | 10 | 0 |
| 1981 | 6 | 0 |
| 1982 | 8 | 0 |
| 1983 | 9 | 0 |
| 1984 | 7 | 0 |
| 1985 | 9 | 0 |
| 1986 | 13 | 0 |
| 1987 | 6 | 0 |
| 1988 | 9 | 0 |
| 1989 | 7 | 0 |
| 1990 | 9 | 0 |
| 1991 | 13 | 0 |
| 1992 | 15 | 0 |
| 1993 | 13 | 0 |
| 1994 | 13 | 0 |
| 1995 | 13 | 0 |
| 1996 | 16 | 0 |
| 1997 | 16 | 0 |
| 1998 | 25 | 0 |
| 1999 | 15 | 0 |
| 2000 | 16 | 0 |
| 2001 | 24 | 5 |
| 2002 | 31 | 16 |
| 2003 | 22 | 33 |
| 2004 | 27 | 36 |
| 2005 | 27 | 34 |
| 2006 | 28 | 36 |
| 2007 | 31 | 39 |
| 2008 | 27 | 30 |
| 2009 | 22 | 28 |
| 2010 | 23 | 19 |
| 2011 | 18 | 16 |
| 2012 | 19 | 11 |
| 2013 | 21 | 9 |
| 2014 | 18 | 13 |
| 2015 | 7 | 20 |
| 2016 | 13 | 18 |
| 2017 | 16 | 20 |
| 2018 | 13 | 15 |
| 2019 | 23 | 27 |
| 2020 | 19 | 24 |
| 2021 | 20 | 28 |
| 2022 | 16 | 13 |
| 2023 | 21 | 21 |
| 2024 | 14 | 12 |
| 2025 | 15 | 8 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Monitoring system for detecting leaks using a system of flow rate sensors and smart valves1 Sep 2026US 12,723,382 B2Alarm.com Incorporated
- Wet gas holdup gas fraction and flow meter11 Aug 2026US 12,704,396 B2Saudi Arabian Oil Company
- Determining effects of acoustic energy on fluid and rock interactions28 Jul 2026US 12,693,269 B2Saudi Arabian Oil Company
- System for monitoring containers or pipes in which at least two phases or at least two media of one phase in the form of a liquid, a gas and/or a solid are stored or transported together28 Jul 2026US 12,693,270 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Acoustic particle counter for nanoparticles in liquids19 May 2026US 12,631,541 B2Ovivo Inc.
- Ultrasonic probe, pneumatically driven liquid metering injection apparatus, and control and fault-diagnosis method for pneumatically driven liquid metering injection based on ultrasonic sensing24 Sep 2026US 2026/0287557 A1ShenZhen KEWEI Neo_Tech Co.,Ltd.
- Physical quantity measurement system10 Sep 2026US 2026/0266750 A1Panasonic Intellectual Property Management Co., Ltd.
- Infiltration Line Measurement System and Method for Tailings Pond6 Aug 2026US 2026/0227364 A1Ccteg Chinese Institute of Coal Science
- Meter with mixture detection and metrology compensation21 May 2026US 2026/0139980 A1Itron, Inc.
- Systems and methods to determine a temperature compensated speed of sound for gases2 Apr 2026US 2026/0092902 A1Honeywell International Inc.
Most cited
By later US patents
- Cassette for intravenous-line flow-control system453US 6,165,154 ADEKA Products Limited Partnership · 2000
- Speech coding, reconstruction and recognition using acoustics and electromagnetic waves420US 5,729,694 AThe Regents of the University of California · 1998
- Indirect calorimeter for medical applications391US 6,629,934 B2Healthetech, Inc. · 2003
- Apparatus and method for controlling sonic treatment366US 6,719,449 B1Covaris, Inc. · 2004
- Stopcock valve329US 5,755,683 ADEKA Products Limited Partnership · 1998