H01J 49/4255
With particular constructional features
Official title: {with particular constructional features}
H01J49/4255 (With particular constructional features) appears on 116 US grants and 110 published applications in this corpus.
Search patents in H01J- Granted patents
- 116
- Published applications
- 110
- Assignees
- 60
- Inventors
- 225
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 3 |
| 2005 | 4 | 4 |
| 2006 | 2 | 5 |
| 2007 | 2 | 1 |
| 2008 | 3 | 1 |
| 2009 | 2 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 1 |
| 2013 | 5 | 6 |
| 2014 | 3 | 7 |
| 2015 | 5 | 7 |
| 2016 | 7 | 5 |
| 2017 | 7 | 7 |
| 2018 | 6 | 6 |
| 2019 | 10 | 4 |
| 2020 | 4 | 10 |
| 2021 | 7 | 5 |
| 2022 | 4 | 6 |
| 2023 | 5 | 7 |
| 2024 | 4 | 8 |
| 2025 | 5 | 2 |
| 2026 | 3 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for controlling trapped ions with an electrode layer of low surface roughness18 Aug 2026US 12,712,172 B2Infineon Technologies Austria AG
- Apparatus and method for ion separation11 Aug 2026US 12,706,292 B2Thermo Finnigan LLC
- Device for controlling trapped ions having a temperature sensor13 Jan 2026US 12,523,543 B2Infineon Technologies Austria AG
- Method for driving linear ion trap and mass spectrometer30 Dec 2025US 12,512,311 B2Shimadzu Corporation
- Ion guide assembly having multiple ion guides15 Jul 2025US 12,362,162 B2Micromass UK Limited
- Apparatus and method for trapping ions27 Aug 2026US 2026/0253859 A1Thermo Finnigan LLC
- Charged particle trap apparatus27 Aug 2026US 2026/0253860 A1Oxford Ionics Limited
- Ion Guide Bandpass Filter with Dynamic Window Optimization16 Jul 2026US 2026/0204535 A1DH Technologies Development Pte. Ltd.
- Bandpass mass filter9 Jul 2026US 2026/0196461 A1Micromass UK Limited
- Ion optical element and mass spectrometer25 Jun 2026US 2026/0179896 A1Shimadzu Corporation
Most cited
By later US patents
- Mass spectrometer and method for using same50US 8,395,112 B12013
- Quartz quadrupole for mass filter47US 4,885,500 AHewlett-Packard Company · 1989
- Multilayer multipole46US 5,298,745 AHewlett-Packard Company · 1994
- Multipole PCB with small robotically installed rod segments36US 9,870,906 B1Thermo Finnigan LLC · 2018
- Cylindrical multiple-pole mass filter with CVD-deposited electrode layers30US 5,852,302 AShimadzu Corporation · 1998