H01J 61/86
With discharge additionally constricted by close spacing of electrodes
Official title: with discharge additionally constricted by close spacing of electrodes, e.g. for optical projection
H01J61/86 (With discharge additionally constricted by close spacing of electrodes) appears on 365 US grants and 349 published applications in this corpus.
Search patents in H01J- Granted patents
- 365
- Published applications
- 349
- Assignees
- 109
- Inventors
- 668
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 6 | 0 |
| 1998 | 10 | 0 |
| 1999 | 10 | 0 |
| 2000 | 8 | 0 |
| 2001 | 8 | 7 |
| 2002 | 15 | 24 |
| 2003 | 28 | 28 |
| 2004 | 22 | 31 |
| 2005 | 15 | 22 |
| 2006 | 21 | 37 |
| 2007 | 15 | 25 |
| 2008 | 12 | 18 |
| 2009 | 19 | 28 |
| 2010 | 17 | 32 |
| 2011 | 21 | 20 |
| 2012 | 22 | 22 |
| 2013 | 19 | 8 |
| 2014 | 11 | 11 |
| 2015 | 9 | 5 |
| 2016 | 5 | 8 |
| 2017 | 7 | 5 |
| 2018 | 5 | 2 |
| 2019 | 2 | 4 |
| 2020 | 1 | 1 |
| 2021 | 5 | 3 |
| 2022 | 3 | 2 |
| 2023 | 1 | 2 |
| 2024 | 3 | 2 |
| 2025 | 0 | 0 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Discharge lamp28 Apr 2026US 12,614,710 B1Ushio Denki Kabushiki Kaisha
- Lamp-housing assembly with axially and radially aligned and electrically coupled elements27 Jan 2026US 12,535,470 B2Agilent Technologies, Inc.
- Arc lamp with forming gas for thermal processing systems15 Oct 2024US 12,119,216 B2Beijing E-Town Semiconductor Technology Co., Ltd.
- Super-high pressure lamp23 Apr 2024US 11,965,640 B2Ushio Denki Kabushiki Kaisha
- Xenon lamp for projector20 Feb 2024US 11,908,676 B2Ushio Denki Kabushiki Kaisha
- Open path planar geometry led triggered flash lamps30 Jul 2026US 2026/0221409 A1Excelitas Technologies Corp.
- Flash lamp28 May 2026US 2026/0148954 A1Mitorika Co., Ltd.
- Super-high pressure lamp14 Mar 2024US 2024/0085002 A1Ushio Denki Kabushiki Kaisha
- Xenon lamp for projector25 Jan 2024US 2024/0030020 A1Ushio Denki Kabushiki Kaisha
- Arc Lamp With Forming Gas For Thermal Processing Systems2 Nov 2023US 2023/0352294 A1Beijing E-Town Semiconductor Technology Co., Ltd.
Most cited
By later US patents
- Xenon short arc discharge lamp109US 4,937,496 AW. C. Heraeus GmbH · 1990
- Portable high power arc lamp system and applications therefor88US 5,879,159 AIon Laser Technology · 1999
- High-power metal halide reflector lamp71US 5,621,267 AILC Technology, Inc. · 1997
- Centralized lighting system employing a high brightness light source68US 4,958,263 AGeneral Electric Company · 1990
- Short arc lamp with improved thermal characteristics54US 4,633,128 AILC Technology, Inc. · 1986