G01N 33/0067
By measuring the rate of variation of the concentration
Official title: {by measuring the rate of variation of the concentration}
G01N33/0067 (By measuring the rate of variation of the concentration) appears on 96 US grants and 110 published applications in this corpus.
Search patents in G01N- Granted patents
- 96
- Published applications
- 110
- Assignees
- 97
- Inventors
- 299
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 0 | 2 |
| 2015 | 2 | 3 |
| 2016 | 2 | 5 |
| 2017 | 3 | 3 |
| 2018 | 3 | 9 |
| 2019 | 6 | 9 |
| 2020 | 4 | 8 |
| 2021 | 9 | 14 |
| 2022 | 8 | 6 |
| 2023 | 9 | 15 |
| 2024 | 9 | 16 |
| 2025 | 10 | 10 |
| 2026 | 13 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- System and method for tracking pollution25US 10,268,198 B2International Business Machines Corporation · 2019
- Sensor device, and disaster prevention system and electronic equipment each having sensor device incorporated therein21US 5,830,412 ANittan Company, Limited · 1998
- Production of a sensor for carbon monoxide or water vapor including a semi conductor metallic oxide, catalyst, and rheological agent18US 5,629,474 AKeele University · 1997
- Method and apparatus for nox analysis17US 3,970,430 AE. I. Du Pont de Nemours and Company · 1976
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