G01N 33/004
Co or co2
Official title: {CO or CO2}
G01N33/004 (Co or co2) appears on 932 US grants and 1,180 published applications in this corpus.
Search patents in G01N- Granted patents
- 932
- Published applications
- 1,180
- Assignees
- 710
- Inventors
- 2,735
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 10 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 9 | 0 |
| 1998 | 11 | 0 |
| 1999 | 14 | 0 |
| 2000 | 8 | 0 |
| 2001 | 17 | 5 |
| 2002 | 16 | 16 |
| 2003 | 13 | 15 |
| 2004 | 14 | 19 |
| 2005 | 13 | 13 |
| 2006 | 7 | 18 |
| 2007 | 8 | 13 |
| 2008 | 10 | 20 |
| 2009 | 10 | 16 |
| 2010 | 8 | 11 |
| 2011 | 13 | 22 |
| 2012 | 9 | 24 |
| 2013 | 10 | 23 |
| 2014 | 28 | 19 |
| 2015 | 25 | 73 |
| 2016 | 32 | 81 |
| 2017 | 49 | 70 |
| 2018 | 67 | 83 |
| 2019 | 64 | 93 |
| 2020 | 77 | 120 |
| 2021 | 91 | 95 |
| 2022 | 63 | 63 |
| 2023 | 65 | 68 |
| 2024 | 57 | 67 |
| 2025 | 48 | 75 |
| 2026 | 33 | 58 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Autonomous real-time emissions monitor for marine exhaust emissions29 Sep 2026US 12,748,020 B2
- Detection of volatile organic compounds29 Sep 2026US 12,748,091 B2Aclima Inc.
- Method and systems for monitoring and measuring the amount of a gas dissolved in a liquid22 Sep 2026US 12,742,765 B2Searas AS
- Integrated device for use in a vehicle25 Aug 2026US 12,715,606 B2Honeywell Aerospace US LLC
- Data processing device and gas conversion system25 Aug 2026US 12,715,825 B2Kabushiki Kaisha Toshiba
- Precipitation soil erosion and microbial respiration monitoring device8 Oct 2026US 2026/0309601 A1Zhengzhou University
- Proton rich ionic fluid and methods of test-affirmation24 Sep 2026US 2026/0285679 A1TegIpco, LLC
- Supercritical fluid related process monitoring apparatus and method of use thereof24 Sep 2026US 2026/0287497 A1
- Dac apparatus24 Sep 2026US 2026/0287562 A1Honda Motor Co., Ltd.
- Laboratory monitoring devices and systems17 Sep 2026US 2026/0276613 A1
Most cited
By later US patents
- Solid-state spectrometer230US 11,692,934 B2Masimo Corporation · 2023
- Thermostat incorporating a carbon dioxide sensor suitable for reading using potentiostat techniques, and environmental control system incorporating such thermostat147US 6,578,770 B12003
- Smart-home hazard detector providing useful follow up communications to detection events113US 8,988,232 B1Google Inc. · 2015
- Apparatus and method for non-invasively measuring cardiac output96US 6,227,196 B1NTC Technology, Inc. · 2001
- Thermostat with replaceable carbon monoxide sensor module91US 8,016,205 B2Emerson Electric Co. · 2011