H01J 31/123
Flat display tubes
Official title: {Flat display tubes}
H01J31/123 (Flat display tubes) appears on 1,812 US grants and 1,447 published applications in this corpus.
Search patents in H01J- Granted patents
- 1,812
- Published applications
- 1,447
- Assignees
- 298
- Inventors
- 2,160
- Latest grant
- 17 Jun 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 9 | 0 |
| 1978 | 18 | 0 |
| 1979 | 13 | 0 |
| 1980 | 11 | 0 |
| 1981 | 8 | 0 |
| 1982 | 11 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 12 | 0 |
| 1986 | 11 | 0 |
| 1987 | 9 | 0 |
| 1988 | 19 | 0 |
| 1989 | 15 | 0 |
| 1990 | 23 | 0 |
| 1991 | 14 | 0 |
| 1992 | 19 | 0 |
| 1993 | 33 | 0 |
| 1994 | 18 | 0 |
| 1995 | 27 | 0 |
| 1996 | 56 | 0 |
| 1997 | 64 | 0 |
| 1998 | 88 | 0 |
| 1999 | 91 | 0 |
| 2000 | 82 | 0 |
| 2001 | 79 | 25 |
| 2002 | 83 | 89 |
| 2003 | 82 | 86 |
| 2004 | 80 | 100 |
| 2005 | 68 | 157 |
| 2006 | 85 | 208 |
| 2007 | 100 | 245 |
| 2008 | 96 | 156 |
| 2009 | 78 | 114 |
| 2010 | 118 | 97 |
| 2011 | 96 | 73 |
| 2012 | 82 | 45 |
| 2013 | 44 | 20 |
| 2014 | 18 | 14 |
| 2015 | 16 | 8 |
| 2016 | 6 | 0 |
| 2017 | 4 | 6 |
| 2018 | 2 | 2 |
| 2019 | 3 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Process for fabricating high current field emission cathode containing nanomaterials17 Jun 2025US 12,334,296 B1A&M Consulting, LLC
- Devices having an electron emitting structure24 Aug 2021US 11,101,095 B2Nano-X Imaging Ltd.
- Smart TV with cloud service9 Jun 2020US 10,681,430 B2
- Wiring structure for display device30 Jul 2019US 10,365,520 B2Kobe Steel, Ltd.
- Mobile phone with fluorescent substances4 Jun 2019US 10,313,630 B2Zeppelin LLC
- Electron emission source18 Jun 2026US 2026/0171342 A1Infovion Inc.
- Devices having an electron emitting structure20 Jun 2019US 2019/0189383 A1Nano-X Imaging Ltd.
- Smart TV with Cloud Service22 Nov 2018US 2018/0338114 A1
- Array substrate, display panel and display apparatus having the same, and fabricating method thereof8 Feb 2018US 2018/0040451 A1Beijing Boe Optoelectronics Technology Co., Ltd.
- Detecting system based on terahertz wave7 Dec 2017US 2017/0352516 A1Hon Hai Precision Industry Co., Ltd.
Most cited
By later US patents
- Light-emitting device having light-reflective layer formed with, or/and adjacent to, material that enhances device performance211US 6,630,786 B2Candescent Intellectual Property Services, Inc. · 2003
- Matrix-addressed flat panel display199US 4,857,799 ASRI International · 1989
- Field emission cathode based flat panel display having polyimide spacers186US 5,063,327 AColoray Display Corporation · 1991
- Spacers for field emission display fabricated via self-aligned high energy ablation175US 5,232,549 AMicron Technology, Inc. · 1993
- Field emission cold-cathode device169US 6,097,138 AKabushiki Kaisha Toshiba · 2000