H01J 49/26
Mass spectrometers or separator tubes
H01J49/26 (Mass spectrometers or separator tubes) appears on 3,955 US grants and 3,840 published applications in this corpus.
Search patents in H01J- Granted patents
- 3,955
- Published applications
- 3,840
- Assignees
- 977
- Inventors
- 4,413
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 9 | 0 |
| 1978 | 17 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 11 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 19 | 0 |
| 1988 | 24 | 0 |
| 1989 | 24 | 0 |
| 1990 | 20 | 0 |
| 1991 | 26 | 0 |
| 1992 | 34 | 0 |
| 1993 | 30 | 0 |
| 1994 | 29 | 0 |
| 1995 | 47 | 0 |
| 1996 | 34 | 0 |
| 1997 | 44 | 0 |
| 1998 | 48 | 0 |
| 1999 | 37 | 0 |
| 2000 | 48 | 0 |
| 2001 | 43 | 13 |
| 2002 | 41 | 58 |
| 2003 | 78 | 84 |
| 2004 | 101 | 114 |
| 2005 | 82 | 130 |
| 2006 | 110 | 91 |
| 2007 | 81 | 98 |
| 2008 | 90 | 114 |
| 2009 | 72 | 116 |
| 2010 | 77 | 106 |
| 2011 | 87 | 121 |
| 2012 | 93 | 97 |
| 2013 | 131 | 157 |
| 2014 | 186 | 230 |
| 2015 | 191 | 217 |
| 2016 | 203 | 225 |
| 2017 | 187 | 218 |
| 2018 | 193 | 194 |
| 2019 | 210 | 224 |
| 2020 | 228 | 231 |
| 2021 | 200 | 222 |
| 2022 | 197 | 217 |
| 2023 | 143 | 157 |
| 2024 | 159 | 199 |
| 2025 | 130 | 123 |
| 2026 | 73 | 84 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Mass spectral encoding6 Oct 2026US 12,755,953 B2Micromass UK Limited
- Waveforms in an ion mobility spectrometer29 Sep 2026US 12,748,073 B2Battelle Memorial Institute
- Systems and methods for recovering organic contaminants from semiconducting wafers29 Sep 2026US 12,749,667 B2Elemental Scientific, Inc.
- Charge detection mass spectrometry using multiple accumulation events22 Sep 2026US 12,742,754 B2Thermo Finnigan LLC
- Method of operating a multipole device22 Sep 2026US 12,744,197 B2Thermo Fisher Scientific (Bremen) GmbH
- Astroagents: a multi-agent ai for hypothesis generation from mass spectrometry data8 Oct 2026US 2026/0309689 A1Georgia Tech Research Corporation
- Method for charge calibration of cdms measurements of charged particles8 Oct 2026US 2026/0311980 A1The Trustees of Indiana University
- Method and apparatus8 Oct 2026US 2026/0311986 A1Bruker Switzerland AG
- Beam Homogenization for Trapped Ion Processing with Discrete Ion Packets8 Oct 2026US 2026/0311987 A1DH Technologies Development Pte. Ltd.
- Method of scheduling ions for analysis8 Oct 2026US 2026/0311990 A1Thermo Finnigan LLC
Most cited
By later US patents
- Miniaturized mass spectrometer system529US 5,313,061 AViking Instrument · 1994
- Methods and apparatus for tandem mass spectrometry255US 6,107,623 AMicromass Limited · 2000
- Mass spectrometry from surfaces248US 6,204,500 B1Analytica of Branford, Inc. · 2001
- Ion trap mass spectrometer system and method218US 5,420,425 AFinnigan Corporation · 1995
- Micro-miniature diaphragm pump for the low pressure pumping of gases187US 5,659,171 ANorthrop Grumman Corporation · 1997