H01J 49/4205
Device types
Official title: {Device types}
H01J49/4205 (Device types) appears on 1,563 US grants and 1,545 published applications in this corpus.
Search patents in H01J- Granted patents
- 1,563
- Published applications
- 1,545
- Assignees
- 376
- Inventors
- 1,655
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 2 | 0 |
| 1991 | 5 | 0 |
| 1992 | 13 | 0 |
| 1993 | 12 | 0 |
| 1994 | 15 | 0 |
| 1995 | 23 | 0 |
| 1996 | 9 | 0 |
| 1997 | 17 | 0 |
| 1998 | 23 | 0 |
| 1999 | 9 | 0 |
| 2000 | 26 | 0 |
| 2001 | 12 | 6 |
| 2002 | 12 | 24 |
| 2003 | 22 | 30 |
| 2004 | 35 | 41 |
| 2005 | 36 | 54 |
| 2006 | 43 | 34 |
| 2007 | 36 | 46 |
| 2008 | 42 | 45 |
| 2009 | 34 | 50 |
| 2010 | 30 | 39 |
| 2011 | 32 | 43 |
| 2012 | 37 | 27 |
| 2013 | 49 | 55 |
| 2014 | 55 | 65 |
| 2015 | 71 | 60 |
| 2016 | 65 | 92 |
| 2017 | 70 | 95 |
| 2018 | 85 | 63 |
| 2019 | 82 | 77 |
| 2020 | 83 | 108 |
| 2021 | 83 | 95 |
| 2022 | 88 | 101 |
| 2023 | 60 | 81 |
| 2024 | 82 | 96 |
| 2025 | 68 | 68 |
| 2026 | 45 | 50 |
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
- 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
- Method of optimizing geometric and electrostatic parameters of an electrostatic linear ion trap (ELIT)8 Sep 2026US 12,731,775 B2The Trustees of Indiana University
- 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
- Mass spectrometer having parallel precursor ion isolation1 Oct 2026US 2026/0298873 A1Micromass UK Limited
- Improved spectrometer or imaging assembly1 Oct 2026US 2026/0299058 A1Npl Management Limited
- Mass spectrometer and method1 Oct 2026US 2026/0302150 A1Truemass Ltd
Most cited
By later US patents
- Methods and apparatus for tandem mass spectrometry255US 6,107,623 AMicromass Limited · 2000
- Ion trap mass spectrometer system and method218US 5,420,425 AFinnigan Corporation · 1995
- Spectrometer with axial field183US 5,847,386 AMDS Inc. · 1998
- Method of mass analyzing a sample by use of a quadrupole ion trap179US 4,540,884 AFinnigan Corporation · 1985
- Axial ejection in a multipole mass spectrometer152US 6,177,668 B1MDS Inc. · 2001