H01J 61/04
Electrodes
Official title: Electrodes (for igniting H01J61/54); Screens; Shields
H01J61/04 (Electrodes) appears on 1,072 US grants and 779 published applications in this corpus.
Search patents in H01J- Granted patents
- 1,072
- Published applications
- 779
- Assignees
- 380
- Inventors
- 2,091
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 9 | 0 |
| 1978 | 16 | 0 |
| 1979 | 10 | 0 |
| 1980 | 12 | 0 |
| 1981 | 7 | 0 |
| 1982 | 21 | 0 |
| 1983 | 8 | 0 |
| 1984 | 14 | 0 |
| 1985 | 8 | 0 |
| 1986 | 12 | 0 |
| 1987 | 10 | 0 |
| 1988 | 14 | 0 |
| 1989 | 27 | 0 |
| 1990 | 22 | 0 |
| 1991 | 14 | 0 |
| 1992 | 10 | 0 |
| 1993 | 18 | 0 |
| 1994 | 16 | 0 |
| 1995 | 19 | 0 |
| 1996 | 24 | 0 |
| 1997 | 38 | 0 |
| 1998 | 38 | 0 |
| 1999 | 37 | 0 |
| 2000 | 31 | 0 |
| 2001 | 34 | 17 |
| 2002 | 42 | 56 |
| 2003 | 55 | 39 |
| 2004 | 48 | 57 |
| 2005 | 31 | 53 |
| 2006 | 33 | 61 |
| 2007 | 22 | 66 |
| 2008 | 28 | 55 |
| 2009 | 38 | 61 |
| 2010 | 35 | 60 |
| 2011 | 36 | 36 |
| 2012 | 31 | 29 |
| 2013 | 30 | 18 |
| 2014 | 17 | 19 |
| 2015 | 15 | 20 |
| 2016 | 14 | 16 |
| 2017 | 14 | 13 |
| 2018 | 19 | 14 |
| 2019 | 16 | 14 |
| 2020 | 8 | 10 |
| 2021 | 15 | 16 |
| 2022 | 13 | 15 |
| 2023 | 10 | 10 |
| 2024 | 14 | 10 |
| 2025 | 9 | 7 |
| 2026 | 2 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Excimer lamp with integrated heatsink15 Sep 2026US 12,738,473 B2
- Discharge lamp28 Apr 2026US 12,614,710 B1Ushio Denki Kabushiki Kaisha
- Tungsten-containing material and direct current discharge lamp electrode4 Nov 2025US 12,460,281 B2A. L. M. T. Corp.
- Photoionization detector having improved gain and reduced humidity sensitivity21 Oct 2025US 12,451,343 B2Mocon, Inc.
- Excimer lamp and UV irradiation unit including the same23 Sep 2025US 12,424,431 B2ORC Manufacturing Co., Ltd.
- Light-emitting sealed body1 Oct 2026US 2026/0302153 A1Hamamatsu Photonics K.K.
- High Frequency Plasma Light Source3 Sep 2026US 2026/0260865 A1neonsee GmbH
- Open path planar geometry led triggered flash lamps30 Jul 2026US 2026/0221409 A1Excelitas Technologies Corp.
- Spectral range extension for laser-sustained plasma light collection28 May 2026US 2026/0148951 A1KLA Corporation
- Flash lamp28 May 2026US 2026/0148954 A1Mitorika Co., Ltd.
Most cited
By later US patents
- Light-emitting structure having leakage current limited by an electrical conductor with an adjustable frequency and an adjustable potential126US 8,120,236 B2Saint-Gobain Glass France · 2012
- Gas discharge tube123US 6,741,036 B1Hamamatsu Photonics K.K. · 2004
- Gas discharge tube having precise electrode arrangement121US 6,586,866 B1Hamamatsu Photonics K.K. · 2003
- Diode structure flat panel display100US 5,449,970 AMicroelectronics and Computer Technology Corporation · 1995
- Combination fluorescent and LED lighting system99US 7,249,865 B2Plastic Inventions and Patents, Inc. · 2007