G01N 27/66
And measuring current or voltage
Official title: and measuring current or voltage
G01N27/66 (And measuring current or voltage) appears on 187 US grants and 121 published applications in this corpus.
Search patents in G01N- Granted patents
- 187
- Published applications
- 121
- Assignees
- 114
- Inventors
- 340
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 9 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 0 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 3 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 0 |
| 2011 | 0 | 6 |
| 2012 | 1 | 6 |
| 2013 | 4 | 8 |
| 2014 | 3 | 8 |
| 2015 | 9 | 5 |
| 2016 | 7 | 4 |
| 2017 | 7 | 6 |
| 2018 | 5 | 11 |
| 2019 | 6 | 6 |
| 2020 | 10 | 6 |
| 2021 | 6 | 9 |
| 2022 | 6 | 10 |
| 2023 | 7 | 9 |
| 2024 | 8 | 11 |
| 2025 | 11 | 4 |
| 2026 | 3 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods and systems for limiting water within a photoionization detector18 Aug 2026US 12,710,410 B2Honeywell International Inc.
- Photoionization detector sensor utilizing time division modes to perform separation and detection in the same physical region9 Jun 2026US 12,650,414 B2Honeywell International Inc.
- Sensor element for gas sensor having nanorod structure and manufacturing method thereof, and gas sensor12 May 2026US 12,625,108 B2Hongik University Industry-Academia Cooperation Foundation
- Photoionization detector with layered electrodes23 Dec 2025US 12,504,401 B2Honeywell International Inc.
- Condensation mitigation in ionization sensing4 Nov 2025US 12,461,066 B2Applications Uniques Ltd.
- Detectors28 May 2026US 2026/0146979 A1Waters Technologies Corporation
- System including gas analyzer and method of controlling the same30 Apr 2026US 2026/0118317 A1Atonarp Inc.
- Photoionization detector with layered electrodes26 Mar 2026US 2026/0086068 A1Honeywell International Inc.
- Photoionization detector having improved gain and reduced humidity sensitivity22 Jan 2026US 2026/0024739 A1Mocon, Inc.
- Photoionization detector having improved gain and reduced humidity sensitivity15 Jan 2026US 2026/0016447 A1Mocon, Inc.
Most cited
By later US patents
- Method and apparatus for characterization of aerosols69US 4,837,440 AMatter & Siegmann AG · 1989
- Ion source and sample introduction method and apparatus using two stage ionization for producing sample gas ions57US 5,218,203 AGeorgia Tech Research Corporation · 1993
- Method for detection of foreign matter contents in gases37US 5,047,723 A1991
- Dual-channel photo-ionization detector that eliminates the effect of ultraviolet intensity on concentration measurements36US 6,313,638 B1RAE Systems, Inc. · 2001
- Photo-ionization detector for volatile gas measurement35US 5,773,833 ARAE Systems, Inc. · 1998