H01J 61/822
High-pressure mercury lamps
Official title: {High-pressure mercury lamps}
H01J61/822 (High-pressure mercury lamps) appears on 85 US grants and 80 published applications in this corpus.
Search patents in H01J- Granted patents
- 85
- Published applications
- 80
- Assignees
- 40
- Inventors
- 191
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 3 |
| 2002 | 6 | 7 |
| 2003 | 14 | 10 |
| 2004 | 4 | 14 |
| 2005 | 5 | 3 |
| 2006 | 5 | 9 |
| 2007 | 7 | 4 |
| 2008 | 3 | 7 |
| 2009 | 0 | 4 |
| 2010 | 3 | 3 |
| 2011 | 3 | 3 |
| 2012 | 4 | 2 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 1 | 3 |
| 2016 | 2 | 2 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Lamp monitoring and control system and method26 May 2026US 12,641,701 B2Smartcap Innovations, LLC
- Light source device including discharge lamp, irradiation device and distinguishing method for discharge lamp27 Feb 2024US 11,913,985 B2Phoenix Electric Co., Ltd.
- Lamp device, exposure apparatus, and method of manufacturing article6 Dec 2022US 11,521,845 B2Canon Kabushiki Kaisha
- Short-arc discharge lamp9 Nov 2021US 11,170,987 B1Ushio Denki Kabushiki Kaisha
- Electrode arrangement for a discharge lamp, gas discharge lamp, protective film and method for providing a protective film on an electrode arrangement27 Apr 2021US 10,991,569 B2OSRAM GmbH
- Lamp monitoring and control system and method7 Dec 2023US 2023/0397318 A1Smartcap Innovations, LLC
- Lamp device, exposure apparatus, and method of manufacturing article18 Mar 2021US 2021/0082682 A1Canon Kabushiki Kaisha
- Light source device including discharge lamp, irradiation device and distinguishing method for discharge lamp7 Jan 2021US 2021/0003627 A1Phoenix Electric Co., Ltd.
- Electrode arrangement for a discharge lamp, gas discharge lamp, protective film and method for providing a protective film on an electrode arrangement27 Aug 2020US 2020/0273694 A1OSRAM GmbH
- Discharge lamp lighting device14 Feb 2019US 2019/0053361 A1Ushio Denki Kabushiki Kaisha
Most cited
By later US patents
- High pressure mercury discharge lamp57US 5,497,049 AU. S. Philips Corporation · 1996
- High brightness discharge light source26US 5,239,230 AGeneral Electric Company · 1993
- High-pressure discharge lamp, and manufacturing method, lighting method, and lighting device for the same26US 6,545,430 B2Matsushita Electric Industrial Co., Ltd. · 2003
- Recirculation of reflected source light in an image projection system20US 6,962,426 B2InFocus Corporation · 2005
- Electric lamp having an undercoat for increasing the light output of a luminescent layer18US 5,552,665 APhilips Electronics North America Corporation · 1996