G01N 2291/0215
Mixtures of three or more gases
Official title: Mixtures of three or more gases, e.g. air
G01N2291/0215 (Mixtures of three or more gases) appears on 170 US grants and 184 published applications in this corpus.
Search patents in G01N- Granted patents
- 170
- Published applications
- 184
- Assignees
- 162
- Inventors
- 445
- Latest grant
- 21 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 7 | 4 |
| 2003 | 6 | 5 |
| 2004 | 4 | 10 |
| 2005 | 6 | 9 |
| 2006 | 7 | 8 |
| 2007 | 7 | 9 |
| 2008 | 4 | 3 |
| 2009 | 3 | 6 |
| 2010 | 6 | 11 |
| 2011 | 3 | 9 |
| 2012 | 5 | 6 |
| 2013 | 6 | 0 |
| 2014 | 12 | 0 |
| 2015 | 1 | 4 |
| 2016 | 0 | 7 |
| 2017 | 2 | 10 |
| 2018 | 1 | 6 |
| 2019 | 10 | 11 |
| 2020 | 7 | 13 |
| 2021 | 8 | 14 |
| 2022 | 11 | 10 |
| 2023 | 7 | 11 |
| 2024 | 10 | 8 |
| 2025 | 12 | 8 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for acoustic determination of gas composition21 Jul 2026US 12,687,525 B2Saudi Arabian Oil Company
- Method for determining a property of a sample fluid or a resonant frequency of a resonator cell10 Mar 2026US 12,571,775 B2Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e. V.
- Methods, apparatuses, and computer program products for blockage detection in porous media24 Feb 2026US 12,560,579 B2Honeywell Analytics Limited
- Gas sensor with drift compensation6 Jan 2026US 12,516,967 B2Matrix Sensors, Inc.
- Odor detection device and odor detection method4 Nov 2025US 12,461,071 B2Taiyo Yuden Co., Ltd.
- Physical quantity measurement system10 Sep 2026US 2026/0266641 A1Panasonic Intellectual Property Management Co., Ltd.
- Method and device for determining substance proportions of a fluid mixture of substances and medical device30 Jul 2026US 2026/0216464 A1Corscience GmbH & Co. KG
- Methods and systems for acoustic determination of gas composition30 Oct 2025US 2025/0334552 A1Aramco Services Company
- Respiratory assistance apparatus11 Sep 2025US 2025/0281712 A1Fisher & Paykel Healthcare Limited
- Environment condition measurement device and method for setting environment condition measurement device10 Jul 2025US 2025/0224378 A1Daikin Industries, Ltd.
Most cited
By later US patents
- Smart sensor system and method using a surface acoustic wave vapor sensor array and pattern recognition for selective trace organic vapor detection160US 5,469,369 AThe United States of America as represented by the Secretary of the Navy · 1995
- Gas concentration sensor and control for oxygen concentrator utilizing gas concentration sensor139US 5,917,135 AInvacare Corporation · 1999
- Systems and methods for detection and measurement of elements in a medium90US 6,969,865 B2ACIST Medical Systems, Inc. · 2005
- System to be used for the determination of no levels in exhaled air and diagnostic methods for disorders related to abnormal no levels84US 5,922,610 AAerocrine AB · 1999
- Multiple sensing system and device59US 6,839,636 B1Smiths Detection-Pasadena, Inc. · 2005