G01N 33/0044
Sulphides
Official title: {Sulphides, e.g. H2S}
G01N33/0044 (Sulphides) appears on 223 US grants and 291 published applications in this corpus.
Search patents in G01N- Granted patents
- 223
- Published applications
- 291
- Assignees
- 204
- Inventors
- 740
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 3 | 1 |
| 2003 | 0 | 2 |
| 2004 | 0 | 2 |
| 2005 | 2 | 7 |
| 2006 | 1 | 4 |
| 2007 | 1 | 7 |
| 2008 | 3 | 4 |
| 2009 | 1 | 3 |
| 2010 | 3 | 4 |
| 2011 | 7 | 6 |
| 2012 | 1 | 3 |
| 2013 | 2 | 7 |
| 2014 | 6 | 7 |
| 2015 | 8 | 10 |
| 2016 | 4 | 28 |
| 2017 | 14 | 24 |
| 2018 | 12 | 21 |
| 2019 | 18 | 20 |
| 2020 | 18 | 30 |
| 2021 | 20 | 18 |
| 2022 | 20 | 23 |
| 2023 | 21 | 10 |
| 2024 | 14 | 15 |
| 2025 | 8 | 20 |
| 2026 | 8 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and systems for monitoring and measuring the amount of a gas dissolved in a liquid22 Sep 2026US 12,742,765 B2Searas AS
- In situ treatment system and method for wellbore chemical sensors4 Aug 2026US 12,699,070 B2Halliburton Energy Services.Inc.
- Systems and methods for gas leak detection using unmanned autonomous vehicles9 Jun 2026US 12,650,356 B2Schlumberger Technology Corporation
- Thiosulfate sensor9 Jun 2026US 12,650,404 B2Badger Meter, Inc.
- Optical detection chip and optical detection system12 May 2026US 12,625,082 B2The University of Kitakyushu
- Hydrogen sulfide detecting agent17 Sep 2026US 2026/0276610 A1Nok Corporation
- Electronic nose for rapid detection23 Jul 2026US 2026/0210922 A1Ainos, Inc.
- Sensing device4 Jun 2026US 2026/0153538 A1Life Safety Distribution AG
- System and method of worker exposure tracking14 May 2026US 2026/0133170 A1Industrial Scientific Corporation
- Conduit Systems with Internal Sensor Devices23 Apr 2026US 2026/0110603 A1ABB Schweiz AG
Most cited
By later US patents
- Trace level detection of analytes using artificial olfactometry73US 6,467,333 B2California Institute of Technology · 2002
- Medical applications of artificial olfactometry66US 6,841,391 B2California Institute of Technology · 2005
- Trace level detection of analytes using artificial olfactometry65US 6,244,096 B1California Institute of Technology · 2001
- Trace level detection of analytes using artificial olfactometry55US 6,319,724 B1California Institute of Technology · 2001
- Resonant gas sensor54US 10,502,705 B2Lyten, Inc. · 2019