H01J 2893/0031
Tubes with material luminescing under electron bombardment
H01J2893/0031 (Tubes with material luminescing under electron bombardment) appears on 14 US grants and 5 published applications in this corpus.
Search patents in H01J- Granted patents
- 14
- Published applications
- 5
- Assignees
- 8
- Inventors
- 29
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cathode-ray tube ultraviolet light source3 Feb 2026US 12,542,268 B2
- Field emission light source18 Jun 2019US 10,325,770 B2Lightlab Sweden AB
- Ultraviolet light emitting device17 Jul 2018US 10,026,900 B2Industry Foundation of Chonnam National University
- Two-way reciprocal amplification electron/photon source27 Mar 2012US 8,143,775 B2Lightlab Sweden AB
- Cold-cathode cathodoluminescent lamp7 Jan 2003US 6,504,311 B1SI Diamond Technology, Inc.
- Cathode-ray tube ultraviolet light source31 Oct 2024US 2024/0363326 A1
- Field emission light source30 Nov 2017US 2017/0345640 A1Lightlab Sweden AB
- Ultraviolet light emitting device4 May 2017US 2017/0125683 A1Industry Foundation of Chonnam National University
- Light Emission Device and Display Device Using Same as Light Source10 Jun 2010US 2010/0141115 A1
- Two-Way Reciprocal Amplification Electron/Photon Source21 May 2009US 2009/0128002 A1Lightlab Sweden AB
Most cited
By later US patents
- Flat CRT system131US 3,935,500 ATexas Instruments Incorporated · 1976
- Cathode structure for a multibeam cathode ray tube85US 4,020,381 ATexas Instruments Incorporated · 1977
- Display with UV-light emitting phosphor32US 5,821,685 AMotorola, Inc. · 1998
- Fluorescent composition and fluorescent luminous device21US 4,791,336 AFutaba Denshi Kogyo K. K. · 1988
- Phosphor and method of making same17US 5,747,100 AMotorola, Inc. · 1998