G01N 2291/02433
Gases in liquids
Official title: Gases in liquids, e.g. bubbles, foams
G01N2291/02433 (Gases in liquids) appears on 256 US grants and 211 published applications in this corpus.
Search patents in G01N- Granted patents
- 256
- Published applications
- 211
- Assignees
- 169
- Inventors
- 564
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 8 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 4 | 2 |
| 2002 | 10 | 4 |
| 2003 | 8 | 7 |
| 2004 | 3 | 11 |
| 2005 | 4 | 2 |
| 2006 | 4 | 2 |
| 2007 | 2 | 9 |
| 2008 | 3 | 7 |
| 2009 | 5 | 7 |
| 2010 | 8 | 7 |
| 2011 | 3 | 6 |
| 2012 | 7 | 8 |
| 2013 | 2 | 3 |
| 2014 | 12 | 12 |
| 2015 | 3 | 11 |
| 2016 | 3 | 13 |
| 2017 | 11 | 10 |
| 2018 | 8 | 13 |
| 2019 | 18 | 5 |
| 2020 | 8 | 16 |
| 2021 | 9 | 13 |
| 2022 | 12 | 9 |
| 2023 | 10 | 13 |
| 2024 | 10 | 10 |
| 2025 | 8 | 10 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wet gas holdup gas fraction and flow meter11 Aug 2026US 12,704,396 B2Saudi Arabian Oil Company
- Acoustic particle counter for nanoparticles in liquids19 May 2026US 12,631,541 B2Ovivo Inc.
- Measurement apparatus and measurement method12 May 2026US 12,625,111 B2Yokogawa Electric Corporation
- Method and apparatus for providing real time air measurement applications in wet concrete3 Feb 2026US 12,539,644 B2Cidra Corporate Services Inc.
- Method for distinguishing between the presence of a foreign body or a gas bubble in a medium, and corresponding system9 Dec 2025US 12,493,002 B2Endress + Hauser Flowtec AG
- Chemical sensor and measurement apparatus2 Jul 2026US 2026/0185975 A1Yokogawa Electric Corporation
- Detecting a bubble in a fluid path25 Sep 2025US 2025/0297957 A1Agilent Technologies, Inc.
- System, method, and apparatus for detecting air in a fluid line using active rectification25 Sep 2025US 2025/0297988 A1DEKA Products Limited Partnership
- Underwater bubble detecting method, and degassing agent adding method employing same18 Sep 2025US 2025/0290898 A1Kurita Water Industries Ltd.
- Ultrasonic cavitation sensor14 Aug 2025US 2025/0258137 A1Zevex, Inc.
Most cited
By later US patents
- Cassette for intravenous-line flow-control system453US 6,165,154 ADEKA Products Limited Partnership · 2000
- Stopcock valve329US 5,755,683 ADEKA Products Limited Partnership · 1998
- Intravenous-line air-detection system229US 5,641,892 ADEKA Products Limited Partnership · 1997
- Method and apparatus for ultrasonic detection of air bubbles200US 5,394,732 ACobe Laboratories, Inc. · 1995
- Ultrasonic sensor for the detection of gas bubbles184US 4,722,224 AShiley Incorporated · 1988