H01J 61/42
By transforming the wavelength of the light by luminescence
Official title: by transforming the wavelength of the light by luminescence
H01J61/42 (By transforming the wavelength of the light by luminescence) appears on 609 US grants and 406 published applications in this corpus.
Search patents in H01J- Granted patents
- 609
- Published applications
- 406
- Assignees
- 198
- Inventors
- 1,163
- Latest grant
- 30 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 9 | 0 |
| 1978 | 12 | 0 |
| 1979 | 5 | 0 |
| 1980 | 7 | 0 |
| 1981 | 12 | 0 |
| 1982 | 10 | 0 |
| 1983 | 7 | 0 |
| 1984 | 9 | 0 |
| 1985 | 7 | 0 |
| 1986 | 10 | 0 |
| 1987 | 17 | 0 |
| 1988 | 7 | 0 |
| 1989 | 19 | 0 |
| 1990 | 13 | 0 |
| 1991 | 11 | 0 |
| 1992 | 13 | 0 |
| 1993 | 13 | 0 |
| 1994 | 7 | 0 |
| 1995 | 11 | 0 |
| 1996 | 15 | 0 |
| 1997 | 21 | 0 |
| 1998 | 24 | 0 |
| 1999 | 16 | 0 |
| 2000 | 15 | 0 |
| 2001 | 12 | 8 |
| 2002 | 26 | 30 |
| 2003 | 15 | 16 |
| 2004 | 18 | 32 |
| 2005 | 17 | 41 |
| 2006 | 21 | 28 |
| 2007 | 26 | 23 |
| 2008 | 16 | 31 |
| 2009 | 6 | 37 |
| 2010 | 13 | 30 |
| 2011 | 12 | 17 |
| 2012 | 19 | 18 |
| 2013 | 17 | 24 |
| 2014 | 21 | 14 |
| 2015 | 14 | 13 |
| 2016 | 12 | 11 |
| 2017 | 9 | 4 |
| 2018 | 7 | 5 |
| 2019 | 5 | 6 |
| 2020 | 7 | 5 |
| 2021 | 6 | 1 |
| 2022 | 2 | 8 |
| 2023 | 4 | 2 |
| 2024 | 1 | 0 |
| 2025 | 2 | 2 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Ultraviolet radiation apparatus30 Sep 2025US 12,429,190 B2Shikoh Tech LLC
- Microwave excitation light-source device8 Jul 2025US 12,354,866 B2Mitsubishi Electric Corporation
- 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
- External electrode fluorescent lamp and home appliance including the same4 Apr 2023US 11,621,157 B2EI Lighting Co., Ltd.
- Ultraviolet light emitting element and ultraviolet light irradiation device provided with the same9 Oct 2025US 2025/0316471 A1Shikoh Tech LLC
- Microwave excitation light-source device24 Apr 2025US 2025/0132143 A1Mitsubishi Electric Corporation
- 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
- External electrode fluorescent lamp and home appliance including the same8 Sep 2022US 2022/0285144 A1EI Lighting Co., Ltd.
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