H01J 49/0045
Characterised by the fragmentation or other specific reaction
Official title: {characterised by the fragmentation or other specific reaction}
H01J49/0045 (Characterised by the fragmentation or other specific reaction) appears on 952 US grants and 1,066 published applications in this corpus.
Search patents in H01J- Granted patents
- 952
- Published applications
- 1,066
- Assignees
- 248
- Inventors
- 1,070
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 2 |
| 2002 | 3 | 12 |
| 2003 | 10 | 13 |
| 2004 | 17 | 22 |
| 2005 | 13 | 20 |
| 2006 | 21 | 21 |
| 2007 | 19 | 26 |
| 2008 | 19 | 25 |
| 2009 | 21 | 41 |
| 2010 | 20 | 30 |
| 2011 | 21 | 42 |
| 2012 | 38 | 23 |
| 2013 | 35 | 43 |
| 2014 | 42 | 52 |
| 2015 | 56 | 68 |
| 2016 | 57 | 71 |
| 2017 | 63 | 84 |
| 2018 | 81 | 58 |
| 2019 | 56 | 65 |
| 2020 | 63 | 67 |
| 2021 | 51 | 57 |
| 2022 | 51 | 52 |
| 2023 | 47 | 45 |
| 2024 | 42 | 53 |
| 2025 | 34 | 50 |
| 2026 | 21 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01J 49/005By collision with gas245
- H01J 49/0072By ion/ion reaction159
- H01J 49/0054By an electron beam86
- H01J 49/0077Specific reactions other than fragmentation76
- H01J 49/0063By applying a resonant excitation voltage51
- H01J 49/0059By a photon beam, photo-dissociation45
- H01J 49/0068By collision with a surface32
Recent patents
- Mass spectral encoding6 Oct 2026US 12,755,953 B2Micromass UK Limited
- Data independent acquisition of production spectra and reference spectra library matching15 Sep 2026US 12,738,469 B2DH Technologies Development Pte. Ltd.
- Reducing AC effects on ions entering ion guide with pulsing auxiliary AC11 Aug 2026US 12,706,293 B2DH Technologies Development Pte. Ltd.
- Sequencing data-encoded peptides from tandem mass spectra4 Aug 2026US 12,700,478 B2The Hong Kong Polytechnic University
- Mass spectrometry method and mass spectrometer28 Jul 2026US 12,695,074 B2Shimadzu Corporation
- Mass spectrometer and method1 Oct 2026US 2026/0302150 A1Truemass Ltd
- Systems and methods for multi-channel mass spectrometry17 Sep 2026US 2026/0279754 A1Peninsula Technologies, LLC
- Multidimensional Variable Scanning SWATH Mass Spectrometry10 Sep 2026US 2026/0269202 A1DH Technologies Development Pte. Ltd.
- Method for linear quantitative dynamic range extension10 Sep 2026US 2026/0269203 A1DH Technologies Development Pte. Ltd.
- Device for reacting analyte ions with electrons or reactant ions3 Sep 2026US 2026/0260863 A1Micromass UK Limited
Most cited
By later US patents
- Mass spectrometry from surfaces248US 6,204,500 B1Analytica of Branford, Inc. · 2001
- Spectrometer with axial field183US 5,847,386 AMDS Inc. · 1998
- Mass spectrometry with multipole ion guides129US 6,753,523 B1Analytica of Branford, Inc. · 2004
- Quadrupole with axial DC field127US 6,111,250 AMDS Health Group Limited · 2000
- Method of operating ion trap detector in MS/MS mode107US 4,736,101 AFinnigan Corporation · 1988