H01J 2231/12
Crts having luminescent screens
Official title: CRTs having luminescent screens
H01J2231/12 (Crts having luminescent screens) appears on 81 US grants and 25 published applications in this corpus.
Search patents in H01J- Granted patents
- 81
- Published applications
- 25
- Assignees
- 24
- Inventors
- 123
- Latest grant
- 20 Jul 2010
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 2 |
| 2002 | 8 | 14 |
| 2003 | 8 | 5 |
| 2004 | 2 | 2 |
| 2005 | 2 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Cathode ray tube20 Jul 2010US 7,759,852 B2LG Electronics Inc.
- Deflection system for cathode ray tubes26 Jul 2005US 6,922,011 B2Koninklijke Philips Electronics N. V.
- Tracking picture tube10 May 2005US 6,891,340 B2Koninklijke Philips Electronics N. V.
- Glass funnel for a cathode ray tube and a cathode ray tube2 Nov 2004US 6,812,632 B2Asahi Glass Company, Limited
- Beam-index-type cathode ray tube1 Jun 2004US 6,744,185 B2Samsung SDI.Co., Ltd.
- Light-emitting element29 Mar 2007US 2007/0069235 A1Matsushita Electric Industrial Co., Ltd.
- Cathode ray tube22 Feb 2007US 2007/0040490 A1LG Electronics Inc.
- Side projection type cathode ray tube9 Sep 2004US 2004/0174111 A1
- Tracking picture tube12 Aug 2004US 2004/0155610 A1Koninklijke Philips Electronics N. V.
- Glass funnel for a cathode ray tube and a cathode ray tube4 Sep 2003US 2003/0164671 A1Asahi Glass Company, Limited
Most cited
By later US patents
- Cathode-ray tube having a shrinkfit implosion protection band with tension limiting means45US 5,181,123 AThomson Consumer Electronics, Inc. · 1993
- Large screen video display comprising a matrix array of cathode-ray tubes operated at increased vertical and horizontal scan rates32US 4,635,105 AThomson-CSF · 1987
- Color cathode ray tube22US 4,792,720 AKabushiki Kaisha Toshiba · 1988
- Cathode assembly, electron gun assembly, electron tube, heater, and method of manufacturing cathode assembly and electron gun assembly22US 6,130,502 AKabushiki Kaisha Toshiba · 2000
- Color cathode ray tube with plural electron gun assemblies15US 4,714,856 AKabushiki Kaisha Toshiba · 1987