G01N 27/64
Using wave or particle radiation to ionise a gas
Official title: using wave or particle radiation to ionise a gas, e.g. in an ionisation chamber
G01N27/64 (Using wave or particle radiation to ionise a gas) appears on 345 US grants and 294 published applications in this corpus.
Search patents in G01N- Granted patents
- 345
- Published applications
- 294
- Assignees
- 228
- Inventors
- 761
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 11 | 0 |
| 1978 | 10 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 5 | 0 |
| 1988 | 5 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 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 | 6 | 0 |
| 2001 | 6 | 1 |
| 2002 | 1 | 1 |
| 2003 | 1 | 3 |
| 2004 | 4 | 0 |
| 2005 | 2 | 9 |
| 2006 | 3 | 3 |
| 2007 | 9 | 5 |
| 2008 | 4 | 4 |
| 2009 | 2 | 8 |
| 2010 | 3 | 2 |
| 2011 | 4 | 8 |
| 2012 | 3 | 9 |
| 2013 | 6 | 14 |
| 2014 | 8 | 15 |
| 2015 | 15 | 11 |
| 2016 | 12 | 13 |
| 2017 | 15 | 11 |
| 2018 | 13 | 20 |
| 2019 | 15 | 18 |
| 2020 | 17 | 22 |
| 2021 | 18 | 19 |
| 2022 | 21 | 30 |
| 2023 | 16 | 22 |
| 2024 | 20 | 26 |
| 2025 | 19 | 8 |
| 2026 | 9 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Methods and systems for limiting water within a photoionization detector18 Aug 2026US 12,710,410 B2Honeywell International Inc.
- Mass spectrometer18 Aug 2026US 12,712,168 B2YOUNG IN ACE Co., Ltd.
- Gas detection apparatus having two measurement chambers and two detectors4 Aug 2026US 12,699,050 B2bentekk GmbH
- Ion mobility spectrometer16 Jun 2026US 12,656,315 B2Gottfried Wilhelm Leibniz Universitat Hannover
- Ionisation chambers16 Jun 2026US 12,656,316 B2The Secretary of State for Defence
- Rapid screening of volatile chemicals with proton transfer reaction mass spectrometry1 Oct 2026US 2026/0298777 A1Purdue Research Foundation
- System and Method for the Rapid Determination of Clean Fill Materials Associated With Excess Excavated Materials24 Sep 2026US 2026/0287552 A1Thunderbird Environmental, LLC
- Analysis device20 Aug 2026US 2026/0243663 A1Keyence Corporation
- Drift reset circuit for updating the input offset voltage in an ionization smoke detector11 Jun 2026US 2026/0163526 A1Microchip Technology Incorporated
- System for characterizing chiral molecules with pulse recycling28 May 2026US 2026/0146971 A1Centre National De La Recherche Scientifique
Most cited
By later US patents
- Nanodosimeter based on single ion detection174US 7,081,619 B2Loma Linda University · 2006
- Nanodosimeter based on single ion detection131US 6,787,771 B2Loma Linda University · 2004
- Systems for differential ion mobility analysis72US 7,057,168 B2Sionex Corporation · 2006
- Apparatus for analyzing trace components69US 4,023,398 A1977
- Method and apparatus for characterization of aerosols69US 4,837,440 AMatter & Siegmann AG · 1989