G01N 33/0039
O3
Official title: {o3}
G01N33/0039 (O3) appears on 112 US grants and 135 published applications in this corpus.
Search patents in G01N- Granted patents
- 112
- Published applications
- 135
- Assignees
- 104
- Inventors
- 324
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 3 |
| 2003 | 0 | 4 |
| 2004 | 2 | 5 |
| 2005 | 4 | 1 |
| 2006 | 2 | 1 |
| 2007 | 1 | 1 |
| 2008 | 2 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 6 |
| 2011 | 4 | 4 |
| 2012 | 1 | 0 |
| 2013 | 1 | 2 |
| 2014 | 1 | 1 |
| 2015 | 3 | 5 |
| 2016 | 1 | 4 |
| 2017 | 7 | 14 |
| 2018 | 2 | 3 |
| 2019 | 7 | 15 |
| 2020 | 6 | 8 |
| 2021 | 7 | 17 |
| 2022 | 9 | 10 |
| 2023 | 10 | 5 |
| 2024 | 9 | 9 |
| 2025 | 8 | 5 |
| 2026 | 3 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Mitigation of free chlorine interference for ozone detection using an indigo-based indicator29 Sep 2026US 12,748,090 B2Hach Company
- System for detecting and cleaning indoor air pollution2 Jun 2026US 12,644,621 B2Microjet Technology Co., Ltd.
- Ozone photometer13 Jan 2026US 12,523,598 B2The United States of America as represented by the Secretary of Commerce
- Multi-wavelength ozone concentration sensor and method of use25 Nov 2025US 12,480,869 B2MKS Inc.
- System and method for monitoring air quality while cooling an outdoor electronic display assembly29 Jul 2025US 12,372,259 B2Precision Systems Integration, LLC
- Upper atmospheric environmental gas measurement device for radiosonde and measurement method thereof27 Aug 2026US 2026/0251628 A1Korea Research Institute of Standard and Science
- Electronic nose for rapid detection23 Jul 2026US 2026/0210922 A1Ainos, Inc.
- System and method for real-time monitoring of particles in ozone7 May 2026US 2026/0126422 A1Finesse Technology Co., Ltd.
- Ozone concentration measurement device, ozone concentration measurement method, and ozone generation system23 Apr 2026US 2026/0110629 A1Mitsubishi Electric Corporation
- Gas measuring device and gas measuring method for measuring a high target gas concentration16 Apr 2026US 2026/0104333 A1Dräger Safety AG & Co. KGaA
Most cited
By later US patents
- Ozone generator with in-line ozone sensor515US 5,540,898 AVasogen, Inc. · 1996
- Resonant gas sensor54US 10,502,705 B2Lyten, Inc. · 2019
- Ozone sensor and method for use of same in water purification system47US 6,280,633 B1Fantom Technologies Inc. · 2001
- Solid state sensor40US 4,243,631 AEnergy for Independence, Inc. · 1981
- Resonant gas sensor33US 11,137,368 B2Lyten, Inc. · 2021