H01J 3/24
Using permanent magnets only
Official title: using permanent magnets only
H01J3/24 (Using permanent magnets only) appears on 15 US grants and 4 published applications in this corpus.
Search patents in H01J- Granted patents
- 15
- Published applications
- 4
- Assignees
- 8
- Inventors
- 26
- Latest grant
- 15 Jun 2021
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 3 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 1 |
| 2014 | 2 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Magnetically microfocused electron emission source15 Jun 2021US 11,037,753 B2KLA Corporation
- Variable-focus magnetostatic lens4 May 2021US 10,998,158 B1Triad National Security, LLC
- High gradient permanent magnet elements for charged particle beamlines16 Jan 2018US 9,870,891 B1Euclid Techlabs, LLC
- Tubular permanent magnet used in a multi-electron beam device16 Aug 2016US 9,418,815 B2Param Corporation
- Mass analyzer apparatus and systems operative for focusing ribbon ion beams and for separating desired ion species from unwanted ion species in ribbon ion beams30 Dec 2014US 8,921,802 B2
- Magnetically Microfocused Electron Emission Source9 Jan 2020US 2020/0013579 A1KLA-Tencor Corporation
- Electron lens and the electron beam device11 Sep 2014US 2014/0252245 A1Param Corporation
- Electron lens and the electron beam device30 May 2013US 2013/0134322 A1Param Corporation
- Mass analyzer apparatus and systems operative for focusing ribbon ion beams and for separating desired ion species from unwanted ion species in ribbon ion beams20 Sep 2012US 2012/0235053 A1
Most cited
By later US patents
- Electron source11US 5,760,548 AInternational Business Machines Corporation · 1998
- Method of addressing a magnetic matrix electron source flat panel display11US 6,040,808 AInternational Business Machines Corporation · 2000
- Magnetic matrix display device and computer system for displaying data thereon9US 5,747,923 AInternational Business Machines Corporation · 1998
- Electron source including a perforated permanent magnet8US 5,917,277 AInternational Business Machines Corporation · 1999
- Magnetic matrix display device and computer system for displaying data thereon7US 5,753,998 AInternational Business Machines Corporation · 1998