G01N 2030/642
Photoionisation detectors
Official title: {photoionisation detectors}
G01N2030/642 (Photoionisation detectors) appears on 83 US grants and 58 published applications in this corpus.
Search patents in G01N- Granted patents
- 83
- Published applications
- 58
- Assignees
- 43
- Inventors
- 154
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 14 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 3 |
| 2004 | 5 | 6 |
| 2005 | 0 | 4 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 2 | 0 |
| 2009 | 3 | 1 |
| 2010 | 1 | 1 |
| 2011 | 1 | 3 |
| 2012 | 1 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 3 |
| 2015 | 3 | 1 |
| 2016 | 1 | 3 |
| 2017 | 0 | 1 |
| 2018 | 1 | 2 |
| 2019 | 1 | 4 |
| 2020 | 4 | 3 |
| 2021 | 3 | 6 |
| 2022 | 2 | 2 |
| 2023 | 3 | 3 |
| 2024 | 2 | 4 |
| 2025 | 2 | 2 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Photoionization detector having improved gain and reduced humidity sensitivity21 Oct 2025US 12,451,343 B2Mocon, Inc.
- Photoionization detector lamp and its method of manufacture2 Sep 2025US 12,405,246 B2Honeywell International Inc.
- Integrated micro-photoionization detector with an ultrathin ultraviolet transmission window16 Jul 2024US 12,038,408 B2The Regents of the University of Michigan
- Gas phase component analysis device and gas phase component analysis method18 Jun 2024US 12,013,381 B2Frontier Laboratories Ltd.
- Photoionization detector automated zero level calibration1 Aug 2023US 11,714,073 B2Honeywell International Inc.
- Flow-restricted pneumatic modulator for a multidimensional gas chromatography system27 Aug 2026US 2026/0251624 A1The Regents of the University of Michigan
- Photoionization detector having improved gain and reduced humidity sensitivity22 Jan 2026US 2026/0024739 A1Mocon, Inc.
- Monolithic Gas Chromatograph24 Jul 2025US 2025/0237630 A1The Regents of the University of Michigan
- Method for measuring surface carbon level of inorganic solid16 Jan 2025US 2025/0020616 A1Tokuyama Corporation
- Integrated Micro-Photoionization Detector With An Ultrathin Ultraviolet Transmission Window28 Nov 2024US 2024/0393293 A1The Regents of the University of Michigan
Most cited
By later US patents
- Portable gas chromatograph94US 5,611,846 ABoard of Supervisors of Louisiana State University and Agricultural and Mechanical College · 1997
- High speed detection of vapors of specific compounds57US 5,092,155 AThermedics Inc. · 1992
- Vapor collector/desorber with non-conductive tube bundle55US 5,551,278 AThermedics Inc. · 1996
- Selective detection of explosives vapors45US 5,092,218 AThermedics Inc. · 1992
- Process and apparatus for determining the quality of impurities in a gas by chromatography in gas phase and utilization for measuring the quantity of doping impurities in silane45US 5,152,176 AL'Air Liquide, Societe Anonyme Pour l'Etude et l'Exploitation des Procedes · 1992