H01J 61/82
Lamps with high-pressure unconstricted discharge having a cold pressure > 400 torr
Official title: Lamps with high-pressure unconstricted discharge {having a cold pressure > 400 Torr}
H01J61/82 (Lamps with high-pressure unconstricted discharge having a cold pressure > 400 torr) appears on 785 US grants and 529 published applications in this corpus.
Search patents in H01J- Granted patents
- 785
- Published applications
- 529
- Assignees
- 173
- Inventors
- 1,314
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 13 | 0 |
| 1985 | 9 | 0 |
| 1986 | 18 | 0 |
| 1987 | 13 | 0 |
| 1988 | 18 | 0 |
| 1989 | 22 | 0 |
| 1990 | 20 | 0 |
| 1991 | 18 | 0 |
| 1992 | 15 | 0 |
| 1993 | 12 | 0 |
| 1994 | 9 | 0 |
| 1995 | 16 | 0 |
| 1996 | 23 | 0 |
| 1997 | 31 | 0 |
| 1998 | 33 | 0 |
| 1999 | 29 | 0 |
| 2000 | 26 | 0 |
| 2001 | 29 | 12 |
| 2002 | 30 | 41 |
| 2003 | 50 | 41 |
| 2004 | 34 | 39 |
| 2005 | 24 | 37 |
| 2006 | 19 | 52 |
| 2007 | 25 | 44 |
| 2008 | 31 | 36 |
| 2009 | 22 | 49 |
| 2010 | 28 | 41 |
| 2011 | 25 | 33 |
| 2012 | 31 | 32 |
| 2013 | 31 | 20 |
| 2014 | 22 | 13 |
| 2015 | 9 | 13 |
| 2016 | 11 | 3 |
| 2017 | 5 | 4 |
| 2018 | 4 | 8 |
| 2019 | 9 | 3 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 2 |
| 2024 | 2 | 0 |
| 2025 | 1 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lamp monitoring and control system and method26 May 2026US 12,641,701 B2Smartcap Innovations, LLC
- High-pressure discharge lamp, in particular high-pressure sodium-vapor lamp, with improved ignitability25 Mar 2025US 12,261,035 B2Ushio Germany GmbH
- Tubular electrodeless lamp11 Jun 2024US 12,009,199 B2Lumartix SA
- 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
- Lamp monitoring and control system and method7 Dec 2023US 2023/0397318 A1Smartcap Innovations, LLC
- Tubular electrodeless lamp16 Mar 2023US 2023/0082751 A1Lumartix SA
- High-pressure discharge lamp, in particular high-pressure sodium-vapor lamp, with improved ignitability29 Dec 2022US 2022/0415642 A1Ushio Germany GmbH
- 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.
Most cited
By later US patents
- Discharge lamp device112US 5,220,235 AKoito Manufacturing Co., Ltd. · 1993
- High-pressure mercury vapor discharge lamp90US 5,109,181 AU. S. Philips Corporation · 1992
- High pressure sodium lamp of low power75US 6,051,927 APatent-Truehand-Gesellschaft fuer elektrische Gluelampen mbH · 2000
- High-pressure sodium lamp74US 5,510,676 AU. S. Philips Corporation · 1996
- High pressure sodium lamp74US 5,698,947 ASamsung Display Devices Co., Ltd. · 1997