G01N 27/4072
Characterized by the diffusion barrier
Official title: {characterized by the diffusion barrier}
G01N27/4072 (Characterized by the diffusion barrier) appears on 140 US grants and 153 published applications in this corpus.
Search patents in G01N- Granted patents
- 140
- Published applications
- 153
- Assignees
- 37
- Inventors
- 293
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 1 |
| 2003 | 2 | 5 |
| 2004 | 2 | 2 |
| 2005 | 1 | 4 |
| 2006 | 0 | 3 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 4 |
| 2010 | 3 | 3 |
| 2011 | 1 | 3 |
| 2012 | 2 | 1 |
| 2013 | 2 | 6 |
| 2014 | 6 | 7 |
| 2015 | 2 | 9 |
| 2016 | 7 | 6 |
| 2017 | 7 | 9 |
| 2018 | 5 | 22 |
| 2019 | 12 | 15 |
| 2020 | 13 | 18 |
| 2021 | 11 | 9 |
| 2022 | 9 | 5 |
| 2023 | 10 | 5 |
| 2024 | 6 | 6 |
| 2025 | 7 | 6 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Sensor element, gas sensor, and production method for sensor element14 Jul 2026US 12,680,978 B2Niterra Co., Ltd.
- Gas sensor element and gas sensor5 May 2026US 12,618,798 B2NGK Insulators, Ltd.
- Gas sensor and control method of gas sensor7 Apr 2026US 12,596,092 B2NGK Insulators, Ltd.
- Gas sensor element and gas sensor31 Mar 2026US 12,590,919 B2NGK Insulators, Ltd.
- Sensor element24 Mar 2026US 12,584,881 B2NGK Insulators, Ltd.
- Proton Conductor Gas Sensor30 Apr 2026US 2026/0118309 A1Figaro Engineering Inc.
- Gas sensor29 Jan 2026US 2026/0029367 A1NGK Insulators, Ltd.
- Sensor element and gas sensor18 Dec 2025US 2025/0383317 A1NGK Insulators, Ltd.
- Sensor element and gas sensor18 Dec 2025US 2025/0383318 A1NGK Insulators, Ltd.
- Sensor element, gas sensor, evaluation method for sensor element, and program30 Oct 2025US 2025/0334541 A1NGK Insulators, Ltd.
Most cited
By later US patents
- Planar polarographic probe for determining the .lambda. value of gas mixtures135US 5,169,512 ARobert Bosch GmbH · 1992
- Electrochemical NOx sensor63US 4,770,760 ANGK Insulators, Ltd. · 1988
- Oxygen sensor56US 4,450,065 ANgk Spark Plug Co., Ltd. · 1984
- Electrochemical gas sensor, and method for manufacturing the same39US 4,859,307 ANGK Insulators, Ltd. · 1989
- Exhaust gas sensor for determining A/F ratio24US 4,824,549 ANGK Insulators, Ltd. · 1989