H01J 61/22
Vapour of an alkali metal
Official title: vapour of an alkali metal
H01J61/22 (Vapour of an alkali metal) appears on 44 US grants and 19 published applications in this corpus.
Search patents in H01J- Granted patents
- 44
- Published applications
- 19
- Assignees
- 29
- Inventors
- 96
- Latest grant
- 24 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 5 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 3 | 3 |
| 2015 | 2 | 4 |
| 2016 | 2 | 1 |
| 2017 | 2 | 1 |
| 2018 | 3 | 3 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Light emitting plasma lamp bulb for solar UV simulation and lamp comprising the same24 Mar 2026US 12,586,772 B2Korea Research Institute of Chemical Technology
- High-pressure sodium lamp lighting device11 Dec 2018US 10,153,152 B2Iwasaki Electric Co., Ltd.
- Air cooled horticulture lighting fixture for a double ended high pressure sodium lamp27 Feb 2018US 9,903,578 B1IP Holdings, LLC
- Air cooled horticulture lighting fixture13 Feb 2018US 9,888,633 B1IP Holdings, LLC
- Air cooled horticulture lighting fixture5 Sep 2017US 9,750,199 B2IP Holdings, LLC
- Light emitting plasma lamp bulb for solar uv simulation and lamp comprising the same22 Feb 2024US 2024/0063011 A1Korea Research Institute of Chemical Technology
- High-pressure sodium lamp lighting device26 Apr 2018US 2018/0114689 A1Iwasaki Electric Co., Ltd.
- Air cooled horticulture lighting fixture8 Feb 2018US 2018/0035617 A1IP Holdings, LLC
- Air cooled horticulture lighting fixture for a double ended high pressure sodium lamp8 Feb 2018US 2018/0038582 A1IP Holdings, LLC
- Air cooled horticulture lighting fixture with internal ballast27 Jul 2017US 2017/0211801 A1IP Holdings, LLC
Most cited
By later US patents
- Air cooled horticulture lighting fixture for a double ended high pressure sodium lamp83US 9,016,907 B2IP Holdings, LLC · 2015
- 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
- Air cooled horticulture lighting fixture29US 9,752,766 B2IP Holdings, LLC · 2017
- Air cooled horticulture lighting fixture27US 9,750,199 B2IP Holdings, LLC · 2017