G01N 25/22
On combustion or catalytic oxidation
Official title: on combustion or catalytic oxidation, e.g. of components of gas mixtures
G01N25/22 (On combustion or catalytic oxidation) appears on 216 US grants and 185 published applications in this corpus.
Search patents in G01N- Granted patents
- 216
- Published applications
- 185
- Assignees
- 184
- Inventors
- 606
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 0 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 9 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 3 |
| 2002 | 7 | 5 |
| 2003 | 3 | 5 |
| 2004 | 1 | 3 |
| 2005 | 0 | 2 |
| 2006 | 2 | 3 |
| 2007 | 3 | 4 |
| 2008 | 2 | 1 |
| 2009 | 2 | 4 |
| 2010 | 5 | 3 |
| 2011 | 1 | 1 |
| 2012 | 2 | 3 |
| 2013 | 2 | 7 |
| 2014 | 4 | 10 |
| 2015 | 6 | 7 |
| 2016 | 4 | 11 |
| 2017 | 7 | 8 |
| 2018 | 8 | 16 |
| 2019 | 9 | 13 |
| 2020 | 17 | 13 |
| 2021 | 8 | 12 |
| 2022 | 6 | 13 |
| 2023 | 16 | 10 |
| 2024 | 10 | 10 |
| 2025 | 9 | 10 |
| 2026 | 7 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01N 25/28The rise in temperature of the gases resulting from combustion being measured127
- G01N 25/26Using combustion with oxygen under pressure20
- G01N 25/44The heat developed being transferred to a fixed quantity of fluid12
- G01N 25/40The heat developed being transferred to a flowing fluid10
- G01N 25/24Using combustion tubes3
Recent patents
- Gas measuring device9 Jun 2026US 12,650,396 B2National University Corporation Toyohashi University of Technology
- IGCC fuel component analysis and calorific value measurement system19 May 2026US 12,631,583 B2Huaneng (Tianjin) Coal Gasification Power Generation Co., Ltd.
- Gas measuring device and gas measuring process for a target gas with improved compensation of an ambient condition24 Mar 2026US 12,584,874 B2Dräger Safety AG & Co. KGaA
- Gas detection device and gas detection process with a detector and with a modulator3 Feb 2026US 12,540,908 B2Dräger Safety AG & Co. KGaA
- Thermoelectric device27 Jan 2026US 12,538,706 B2The University of Tokyo
- Evaluation system and predictive methodology for sedimentary microfacies of shale oil sweet spots in saline, hydrocarbon-rich lacustrine basin17 Sep 2026US 2026/0276568 A1Chengdu University of Technology
- Optical fiber gas sensor27 Aug 2026US 2026/0251578 A1Cmiws Co., Ltd.
- Information processing system, information processing method, and program9 Jul 2026US 2026/0194481 A1Topologic Inc.
- Sensing assembly for a gas sensor for detecting a reactive gas4 Jun 2026US 2026/0153447 A1United Fiber Sensing Holding B.V.
- Vacuum insulated bomb calorimeter4 Jun 2026US 2026/0153463 A1Solid Power Operating, Inc.
Most cited
By later US patents
- SO.sub.2 sensor181US 5,338,515 ACatalytica, Inc. · 1994
- Temperature control in a portable analytical instrument68US 5,665,314 AHewlett-Packard Company · 1997
- Adsorption based carbon monoxide sensor and method50US 6,474,138 B1Honeywell International Inc. · 2002
- Catalytic differential calorimetric gas sensor34US 5,813,764 AFord Global Technologies, LLC · 1998
- Measuring arrangement and method for monitoring the operability of a soot filter31US 6,432,168 B1EPIQ Sensor-Nite N.V. · 2002