H01J 29/503
Three or more guns, the axes of which lay in a common
Official title: {Three or more guns, the axes of which lay in a common plane}
H01J29/503 (Three or more guns, the axes of which lay in a common) appears on 480 US grants and 96 published applications in this corpus.
Search patents in H01J- Granted patents
- 480
- Published applications
- 96
- Assignees
- 68
- Inventors
- 453
- Latest grant
- 25 Dec 2007
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 8 | 0 |
| 1978 | 5 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 4 | 0 |
| 1982 | 9 | 0 |
| 1983 | 12 | 0 |
| 1984 | 9 | 0 |
| 1985 | 16 | 0 |
| 1986 | 17 | 0 |
| 1987 | 17 | 0 |
| 1988 | 16 | 0 |
| 1989 | 17 | 0 |
| 1990 | 15 | 0 |
| 1991 | 17 | 0 |
| 1992 | 11 | 0 |
| 1993 | 8 | 0 |
| 1994 | 9 | 0 |
| 1995 | 10 | 0 |
| 1996 | 14 | 0 |
| 1997 | 19 | 0 |
| 1998 | 37 | 0 |
| 1999 | 30 | 0 |
| 2000 | 19 | 0 |
| 2001 | 21 | 17 |
| 2002 | 49 | 41 |
| 2003 | 38 | 16 |
| 2004 | 18 | 9 |
| 2005 | 6 | 7 |
| 2006 | 8 | 3 |
| 2007 | 4 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Cathode ray tube having an electron gun25 Dec 2007US 7,312,564 B2Thomson Licensing
- In-line type electron gun and color cathode ray tube apparatus using the same11 Dec 2007US 7,307,378 B2Matsushita Toshiba Picture Display Co., Ltd.
- Cathode-ray tube having an electron gun with an improved main focus lens11 Sep 2007US 7,268,477 B2Thomson Licensing
- Structure of electron gun for cathode ray tube27 Mar 2007US 7,196,461 B2LG. Philips Displays Korea Co., Ltd.
- Electron gun for cathode ray tube12 Dec 2006US 7,148,614 B2LG. Philips Displays Korea Co., Ltd.
- Cathode ray tube including electron gun2 Jul 2009US 2009/0167143 A1LG. Philips Displays Korea Co., Ltd.
- Electron gun, cathode ray tube, and projector16 Aug 2007US 2007/0188071 A1
- Cathode ray electron gun with an improved beam formation structure22 Mar 2007US 2007/0063631 A1
- Focusing lens structure for a cathode ray tube electron gun9 Nov 2006US 2006/0250068 A1
- Electron gun having a main lens27 Jul 2006US 2006/0163997 A1
Most cited
By later US patents
- Color picture tube having an improved inline electron gun with an expanded focus lens38US 4,370,592 ARCA Corporation · 1983
- 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
- Plural gun cathode ray tube having parallel plates adjacent grid apertures33US 4,086,513 ARCA Corporation · 1978
- In-line electron gun33US 5,061,881 AMatsushita Electronics Corporation · 1991