H01J 2229/4844
Characterised by beam passing apertures or combinations
Official title: characterised by beam passing apertures or combinations
H01J2229/4844 (Characterised by beam passing apertures or combinations) appears on 160 US grants and 37 published applications in this corpus.
Search patents in H01J- Granted patents
- 160
- Published applications
- 37
- Assignees
- 51
- Inventors
- 221
- Latest grant
- 24 May 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 10 | 0 |
| 1987 | 7 | 0 |
| 1988 | 12 | 0 |
| 1989 | 8 | 0 |
| 1990 | 9 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 9 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 6 | 4 |
| 2002 | 10 | 11 |
| 2003 | 12 | 8 |
| 2004 | 11 | 4 |
| 2005 | 1 | 4 |
| 2006 | 7 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Field emission device24 May 2022US 11,342,153 B2Electronics and Telecommunications Research Institute
- Low aberration, high intensity electron beam for X-ray tubes18 Jul 2017US 9,711,321 B2General Electric Company
- High-definition cathode ray tube and electron gun28 May 2013US 8,450,917 B2Altera Corporation
- High-definition cathode ray tube and electron gun with lower power consumption22 Feb 2011US 7,892,062 B2Altera Corporation
- Electron gun assembly and cathode ray tube with the same11 Sep 2007US 7,268,478 B2Samsung SDI.Co., Ltd.
- Field emission device30 Sep 2021US 2021/0305002 A1Electronics and Telecommunications Research Institute
- Low Aberration, High Intensity Electron Beam For X-Ray Tubes30 Jun 2016US 2016/0189908 A1General Electric Company
- High-Definition Cathode Ray Tube and Electron Gun21 Jul 2011US 2011/0175517 A1Altera Corporation
- High-definition cathode ray tube and electron gun1 Feb 2007US 2007/0026756 A1Altera Corporation
- Electron gun assembly and cathode ray tube with the same2 Mar 2006US 2006/0043868 A1Samsung SDI.Co., Ltd.
Most cited
By later US patents
- Cathode ray tube apparatus having focusing grids with horizontally and vertically oblong through holes35US 4,814,670 AMatsushita Electronics Corporation · 1989
- Cathode ray tube apparatus with quadrupole electrode structure35US 4,886,999 AMitsubishi Denki Kabushiki Kaishi · 1989
- Electron gun system with dynamic convergence control29US 5,027,043 AZenith Electronics Corporation · 1991
- Color display tube with electrostatic focusing lens24US 4,626,738 AU. S. Philips Corporation · 1986
- Color CRT system and process with dynamic quadrupole lens structure24US 5,036,258 AZenith Electronics Corporation · 1991