H01J 61/44
Devices characterised by the luminescent material
H01J61/44 (Devices characterised by the luminescent material) appears on 456 US grants and 327 published applications in this corpus.
Search patents in H01J- Granted patents
- 456
- Published applications
- 327
- Assignees
- 155
- Inventors
- 876
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 13 | 0 |
| 1988 | 5 | 0 |
| 1989 | 18 | 0 |
| 1990 | 10 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 10 | 0 |
| 1998 | 15 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 10 | 6 |
| 2002 | 19 | 25 |
| 2003 | 14 | 12 |
| 2004 | 17 | 27 |
| 2005 | 13 | 33 |
| 2006 | 20 | 19 |
| 2007 | 20 | 19 |
| 2008 | 13 | 24 |
| 2009 | 5 | 29 |
| 2010 | 8 | 27 |
| 2011 | 11 | 15 |
| 2012 | 17 | 17 |
| 2013 | 13 | 18 |
| 2014 | 19 | 13 |
| 2015 | 13 | 12 |
| 2016 | 11 | 9 |
| 2017 | 8 | 3 |
| 2018 | 6 | 5 |
| 2019 | 5 | 4 |
| 2020 | 4 | 1 |
| 2021 | 4 | 1 |
| 2022 | 2 | 5 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Ultraviolet radiation apparatus30 Sep 2025US 12,429,190 B2Shikoh Tech LLC
- Far-UVC light source with an internal dielectric coating filter arranged on the interior side of electrode12 Mar 2024US 11,929,248 B1City University of Hong Kong
- Phosphor for a UV emitting device and a UV generating device utilizing such a phosphor24 Oct 2023US 11,798,798 B2Xylem Europe GmbH
- Ultraviolet-emitting phosphor, light-emitting element, and light-emitting device17 Jan 2023US 11,555,148 B2Dyden Corporation
- Excimer lamp and light irradiation device15 Nov 2022US 11,501,963 B2Ushio Denki Kabushiki Kaisha
- Ultraviolet light emitting element and ultraviolet light irradiation device provided with the same9 Oct 2025US 2025/0316471 A1Shikoh Tech LLC
- Method of manufacturing light emitter, light emitter and ultraviolet light source2 Nov 2023US 2023/0348783 A1Hamamatsu Photonics K.K.
- Ultraviolet radiation apparatus17 Aug 2023US 2023/0258315 A1Shikoh Tech LLC
- A phosphor combination for a uv emitting device and a uv generating device utilizing such a phosphor combination5 May 2022US 2022/0139692 A1Xylem Europe GmbH
- Vacuum ultraviolet excimer lamp with an inner axially symmetric wire electrode10 Mar 2022US 2022/0076939 A1Xylem Europe GmbH
Most cited
By later US patents
- Method to operate an incoherently emitting radiation source having at least one dielectrically impeded electrode583US 5,604,410 APatent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH · 1997
- UV-emitting phosphor and lamp containing same525US 7,396,491 B2Osram Sylvania Inc. · 2008
- Light sources with nanometer-sized VUV radiation-absorbing phosphors490US 6,982,046 B2General Electric Company · 2006
- Low-pressure gas discharge lamp with phosphor coating351US 6,734,631 B2Koninklijke Philips Electronics N. V. · 2004
- Discharge lamp having two-band phosphor343US 7,199,513 B2Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH · 2007