H01J 49/0422
For gaseous samples
Official title: {for gaseous samples (interfaces to gas chromatographs G01N30/7206)}
H01J49/0422 (For gaseous samples) appears on 464 US grants and 456 published applications in this corpus.
Search patents in H01J- Granted patents
- 464
- Published applications
- 456
- Assignees
- 236
- Inventors
- 837
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 3 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 6 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 3 |
| 2002 | 2 | 1 |
| 2003 | 8 | 5 |
| 2004 | 4 | 7 |
| 2005 | 6 | 8 |
| 2006 | 4 | 4 |
| 2007 | 5 | 9 |
| 2008 | 5 | 4 |
| 2009 | 5 | 8 |
| 2010 | 5 | 8 |
| 2011 | 7 | 17 |
| 2012 | 12 | 15 |
| 2013 | 16 | 15 |
| 2014 | 29 | 28 |
| 2015 | 22 | 29 |
| 2016 | 26 | 30 |
| 2017 | 20 | 35 |
| 2018 | 22 | 34 |
| 2019 | 35 | 28 |
| 2020 | 29 | 33 |
| 2021 | 32 | 39 |
| 2022 | 38 | 25 |
| 2023 | 17 | 14 |
| 2024 | 20 | 27 |
| 2025 | 17 | 16 |
| 2026 | 11 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Automated systems and methods for separating compounds6 Oct 2026US 12,755,950 B2DH Technologies Development Pte. Ltd.
- Systems and techniques for in-source ion separation14 Jul 2026US 12,683,141 B2Thermo Finnigan LLC
- Pressure-stabilized dual inlet gas mass spectrometry9 Jun 2026US 12,651,736 B2The Regents at the University of California
- Rapid evaporative ionisation mass spectrometry (“REIMS”) and desorption electrospray ionisation mass spectrometry (“DESI-MS”) analysis of swabs and biopsy samples2 Jun 2026US 12,646,702 B2Micromass UK Limited
- Mass spectrometer19 May 2026US 12,633,509 B2Shimadzu Corporation
- Apparatus for generating ions10 Sep 2026US 2026/0269205 A1Thermo Fisher Scientific (Bremen) GmbH
- Rapid evaporative ionisation mass spectrometry ("reims") and desorption electrospray ionisation mass spectrometry ("desi-ms") analysis of swabs and biopsy samples10 Sep 2026US 2026/0269206 A1Micromass UK Limited
- Mass spectrometry to identify predictive failure with chemical detection in microelectronic systems13 Aug 2026US 2026/0237622 A1Purdue Research Foundation
- Characterizing aerosol particles using pneumatic-nebulizer-induced disintegration30 Jul 2026US 2026/0219156 A1Light Matter Interaction Inc.
- Detector inlet apparatus and method9 Jul 2026US 2026/0194423 A1
Most cited
By later US patents
- Explosive detection system and sample collecting device135US 6,295,860 B1Hitachi, Ltd. · 2001
- Liquid trap or separator for electrosurgical applications134US 10,916,415 B2Micromass UK Limited · 2021
- Composite membrane and support assembly124US 5,703,359 ALeybold Inficon, Inc. · 1997
- Discontinuous atmospheric pressure interface114US 8,304,718 B2Purdue Research Foundation · 2012
- Gas inlet for an ion source105US 6,646,253 B1GSF-Forschungszentrum fur Umwelt und Gesundheit GmbH · 2003