H01J 49/0054
By an electron beam
Official title: {by an electron beam, e.g. electron impact dissociation, electron capture dissociation}
H01J49/0054 (By an electron beam) appears on 86 US grants and 100 published applications in this corpus.
Search patents in H01J- Granted patents
- 86
- Published applications
- 100
- Assignees
- 45
- Inventors
- 133
- Latest grant
- 18 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 4 | 4 |
| 2006 | 3 | 1 |
| 2007 | 3 | 5 |
| 2008 | 3 | 4 |
| 2009 | 4 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 5 |
| 2012 | 3 | 0 |
| 2013 | 3 | 3 |
| 2014 | 4 | 5 |
| 2015 | 4 | 8 |
| 2016 | 6 | 5 |
| 2017 | 3 | 6 |
| 2018 | 5 | 4 |
| 2019 | 5 | 6 |
| 2020 | 3 | 5 |
| 2021 | 6 | 6 |
| 2022 | 7 | 9 |
| 2023 | 4 | 2 |
| 2024 | 3 | 4 |
| 2025 | 5 | 8 |
By publication year. Applications have been published since 2001.
Recent patents
- Method to identify the glycosidic linkage of sialic acid in glycopeptides18 Nov 2025US 12,474,308 B2DH Technologies Development Pte. Ltd.
- Reduction of internal fragmentation in electron activated dissociation devices and methods17 Jun 2025US 12,334,325 B2DH Technologies Development Pte. Ltd.
- Electron induced dissociation devices and methods27 May 2025US 12,315,713 B2DH Technologies Development Pte. Ltd.
- Vitamin B2 detection by mass spectrometry14 Jan 2025US 12,196,742 B2Quest Diagnostics Investments Incorporated
- Background reduction in top-down antibody analysis7 Jan 2025US 12,188,944 B2DH Technologies Development Pte. Ltd.
- Dissociation Method and System of Deprotonated Peptides with Fragile Moieties25 Dec 2025US 2025/0389727 A1DH Technologies Development Pte. Ltd.
- Reduction of Internal Fragmentation in Electron Activated Dissociation Devices and Methods6 Nov 2025US 2025/0343034 A1DH Technologies Development Pte. Ltd.
- Plasma EDD in Mass Spectrometry23 Oct 2025US 2025/0329522 A1DH Technologies Development Pte. Ltd.
- Top Down Protein Identification Method14 Aug 2025US 2025/0258181 A1
- Electron Induced Dissociation Devices And Methods14 Aug 2025US 2025/0259833 A1DH Technologies Development Pte. Ltd.
Most cited
By later US patents
- Fragmentation methods for mass spectrometry43US 7,049,584 B1Analytica of Branford, Inc. · 2006
- Method and apparatus for dissociating ions by electron impact38US 4,731,533 AVestec Corporation · 1988
- Fragmentation methods for mass spectrometry34US 8,334,507 B1PerkinElmer Health Sciences, Inc. · 2012
- Fragmentation methods for mass spectrometry33US 6,919,562 B1Analytica of Branford, Inc. · 2005
- Electron-ion fragmentation reactions in multipolar radiofrequency fields27US 6,800,851 B1Bruker Daltonik GmbH · 2004