H01J 49/423
With radial ejection
Official title: {with radial ejection}
H01J49/423 (With radial ejection) appears on 85 US grants and 88 published applications in this corpus.
Search patents in H01J- Granted patents
- 85
- Published applications
- 88
- Assignees
- 34
- Inventors
- 106
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 1 | 3 |
| 2005 | 3 | 6 |
| 2006 | 4 | 1 |
| 2007 | 4 | 8 |
| 2008 | 9 | 11 |
| 2009 | 6 | 4 |
| 2010 | 3 | 3 |
| 2011 | 5 | 6 |
| 2012 | 3 | 4 |
| 2013 | 4 | 1 |
| 2014 | 4 | 2 |
| 2015 | 4 | 6 |
| 2016 | 7 | 5 |
| 2017 | 4 | 4 |
| 2018 | 5 | 1 |
| 2019 | 2 | 4 |
| 2020 | 1 | 4 |
| 2021 | 4 | 3 |
| 2022 | 0 | 3 |
| 2023 | 2 | 3 |
| 2024 | 3 | 3 |
| 2025 | 1 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ion trap with elongated electrodes6 Jan 2026US 12,518,958 B2Thermo Fisher Scientific (Bremen) GmbH
- Method for driving linear ion trap and mass spectrometer30 Dec 2025US 12,512,311 B2Shimadzu Corporation
- Multi-turn time-of-flight mass spectrometer26 Nov 2024US 12,154,778 B2Shimadzu Corporation
- Systems and methods of operation of linear ion traps in dual balanced AC/unbalanced RF mode for 2D mass spectrometry16 Jul 2024US 12,040,174 B2Thermo Finnigan LLC
- Ion trap21 May 2024US 11,990,329 B2Thermo Fisher Scientific (Bremen) GmbH
- Method and apparatus to increase sensitivity of inductively coupled plasma mass spectrometry10 Jul 2025US 2025/0226199 A1Kimia Analytics Inc.
- Ion Trap with Elongated Electrodes3 Oct 2024US 2024/0331996 A1Thermo Fisher Scientific (Bremen) GmbH
- Mass and Kinetic Energy Ordering of Ions Prior to Orthogonal Extraction Using Dipolar DC28 Mar 2024US 2024/0105439 A1DH Technologies Development Pte. Ltd.
- Method for driving linear ion trap and mass spectrometer14 Mar 2024US 2024/0087874 A1Shimadzu Corporation
- Electron Activation Dissociation Reaction Device with Ion Isolation Functionality in Mass Spectrometry17 Aug 2023US 2023/0260775 A1DH Technologies Development Pte. Ltd.
Most cited
By later US patents
- Ion trap mass spectrometer system and method218US 5,420,425 AFinnigan Corporation · 1995
- Method and device for orthogonal ion injection into a time-of-flight mass spectrometer129US 5,763,878 ABruker-Franzen Analytik GmbH · 1998
- Obtaining tandem mass spectrometry data for multiple parent ions in an ion population93US 7,157,698 B2Thermo Finnigan LLC · 2007
- Ion trapping mass spectrometry apparatus74US 5,783,824 AHitachi, Ltd. · 1998
- Mass spectrometry method and apparatus74US 6,872,938 B2Thermo Finnigan LLC · 2005