G01N 27/4076
Reference electrodes or reference mixtures
Official title: {Reference electrodes or reference mixtures}
G01N27/4076 (Reference electrodes or reference mixtures) appears on 106 US grants and 99 published applications in this corpus.
Search patents in G01N- Granted patents
- 106
- Published applications
- 99
- Assignees
- 51
- Inventors
- 239
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 6 |
| 2016 | 4 | 5 |
| 2017 | 1 | 11 |
| 2018 | 6 | 15 |
| 2019 | 13 | 19 |
| 2020 | 12 | 11 |
| 2021 | 11 | 7 |
| 2022 | 7 | 5 |
| 2023 | 6 | 5 |
| 2024 | 7 | 2 |
| 2025 | 6 | 4 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas sensor6 Jan 2026US 12,517,082 B2NGK Insulators, Ltd.
- Nanocomposite of molybdenum oxide and conductive carbon for formaldehyde gas detection at room temperature16 Dec 2025US 12,498,345 B2The University of Toledo
- Intelligent wide-area five-wire oxygen sensor chip and manufacturing method thereof7 Oct 2025US 12,436,130 B2Suzhou Industrial Park Futes Automotive Electronics Co., Ltd
- Gas sensor29 Jul 2025US 12,372,493 B2NGK Insulators, Ltd.
- Gas sensor22 Jul 2025US 12,366,550 B2NGK Insulators, Ltd.
- Hydrogen gas sensor and a method of fabricating thereof18 Sep 2025US 2025/0290892 A1Detector Electronics Corporation
- Electrochemical microbial sensor17 Jul 2025US 2025/0231163 A1Ohio University
- Intelligent wide-area five-wire oxygen sensor chip and manufacturing method thereof15 May 2025US 2025/0155402 A1Suzhou Industrial Park Futes Automotive Electronics Co., Ltd
- Sensor element and gas sensor3 Apr 2025US 2025/0110076 A1NGK Insulators, Ltd.
- Sensor element and gas sensor10 Oct 2024US 2024/0337621 A1NGK Insulators, Ltd.
Most cited
By later US patents
- Automotive, internal reference, solid electrolyte, lean oxygen sensor16US 4,724,061 AGeneral Motors Corporation · 1988
- Electrochemical sensor for measuring concentrations of species in a fluid mixture, of the type comprising a partial-pressure internal reference electrode15US 4,272,350 AThomson-CSF · 1981
- Electrochemical oxygen sensor, particularly for exhaust gases from combustion engines15US 4,437,971 ARobert Bosch GmbH · 1984
- Reference electrode printing process and mask for exhaust gas oxygen sensor14US 4,264,647 AGeneral Motors Corporation · 1981
- Gas detection with novel electrolyte membrane and solid internal reference14US 4,560,444 AUop LLC · 1985