G01N 33/0022
Using a number of analysing channels
Official title: {using a number of analysing channels}
G01N33/0022 (Using a number of analysing channels) appears on 130 US grants and 143 published applications in this corpus.
Search patents in G01N- Granted patents
- 130
- Published applications
- 143
- Assignees
- 113
- Inventors
- 355
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 2 |
| 2003 | 2 | 4 |
| 2004 | 1 | 0 |
| 2005 | 1 | 1 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 3 |
| 2012 | 2 | 2 |
| 2013 | 2 | 4 |
| 2014 | 4 | 4 |
| 2015 | 3 | 4 |
| 2016 | 5 | 3 |
| 2017 | 2 | 10 |
| 2018 | 6 | 7 |
| 2019 | 9 | 22 |
| 2020 | 12 | 20 |
| 2021 | 11 | 9 |
| 2022 | 10 | 7 |
| 2023 | 8 | 11 |
| 2024 | 8 | 5 |
| 2025 | 5 | 10 |
| 2026 | 2 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Gas analysis device7 Apr 2026US 12,597,647 B2LG Energy Solution, Ltd.
- Gas measuring apparatus10 Mar 2026US 12,571,784 B2Nova Skantek Instruments (Beijing) Co, Ltd.
- Portable gas analyzer15 Jul 2025US 12,360,091 B2Q.E.D. Environmental Systems, Inc.
- Modular aspirated smoke, gas, or air quality monitoring systems and devices18 Mar 2025US 12,253,503 B2Honeywell International Inc.
- Gas detection using differential path length measurement18 Feb 2025US 12,228,502 B2Analog Devices, Inc.
- Air quality monitoring system and method3 Sep 2026US 2026/0259114 A1Antrum, Inc.
- System and method for measuring a quantity of a known gas4 Jun 2026US 2026/0153461 A1Inficon GmbH
- Station and method for measuring airborne molecular contamination14 May 2026US 2026/0133169 A1Pfeiffer Vacuum GmbH
- Fire detection apparatus and method using multimodal gas sensor array14 May 2026US 2026/0134766 A1Electronics and Telecommunications Research Institute
- Systems and methods for determining carbon dioxide concentrations using peak ratio-based optical spectrometric measurements8 Jan 2026US 2026/0009725 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Apparatus for gas-monitoring and method of conducting same109US 4,759,210 AMicrosensor Systems, Inc. · 1988
- Diagnostic gas monitoring process utilizing an expert system97US 5,265,031 APraxair Technology, Inc. · 1993
- Systems and methods for controlling gas flow from landfills83US 6,169,962 ALandfill Gas & Environmental Products, Inc. · 2001
- Computer code for portable sensing52US 6,606,566 B12003
- Method and apparatus for monitoring and measuring a gas42US 4,226,675 AComsip Delphi, Inc. · 1980