H01J 61/38
Devices for influencing the colour or wavelength of the light
H01J61/38 (Devices for influencing the colour or wavelength of the light) appears on 868 US grants and 565 published applications in this corpus.
Search patents in H01J- Granted patents
- 868
- Published applications
- 565
- Assignees
- 287
- Inventors
- 1,634
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 15 | 0 |
| 1977 | 11 | 0 |
| 1978 | 17 | 0 |
| 1979 | 5 | 0 |
| 1980 | 9 | 0 |
| 1981 | 15 | 0 |
| 1982 | 12 | 0 |
| 1983 | 8 | 0 |
| 1984 | 12 | 0 |
| 1985 | 9 | 0 |
| 1986 | 10 | 0 |
| 1987 | 18 | 0 |
| 1988 | 9 | 0 |
| 1989 | 20 | 0 |
| 1990 | 14 | 0 |
| 1991 | 15 | 0 |
| 1992 | 19 | 0 |
| 1993 | 23 | 0 |
| 1994 | 10 | 0 |
| 1995 | 17 | 0 |
| 1996 | 33 | 0 |
| 1997 | 39 | 0 |
| 1998 | 36 | 0 |
| 1999 | 28 | 0 |
| 2000 | 24 | 0 |
| 2001 | 23 | 14 |
| 2002 | 37 | 43 |
| 2003 | 28 | 21 |
| 2004 | 27 | 41 |
| 2005 | 24 | 51 |
| 2006 | 27 | 36 |
| 2007 | 33 | 36 |
| 2008 | 26 | 44 |
| 2009 | 9 | 45 |
| 2010 | 18 | 32 |
| 2011 | 13 | 20 |
| 2012 | 20 | 24 |
| 2013 | 20 | 36 |
| 2014 | 25 | 17 |
| 2015 | 17 | 15 |
| 2016 | 15 | 16 |
| 2017 | 13 | 7 |
| 2018 | 10 | 10 |
| 2019 | 9 | 10 |
| 2020 | 14 | 7 |
| 2021 | 9 | 3 |
| 2022 | 5 | 20 |
| 2023 | 9 | 6 |
| 2024 | 5 | 5 |
| 2025 | 4 | 3 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- High-power compact VUV laser-sustained plasma light source21 Oct 2025US 12,452,987 B2KLA Corporation
- Ultraviolet radiation apparatus30 Sep 2025US 12,429,190 B2Shikoh Tech LLC
- Microwave excitation light-source device8 Jul 2025US 12,354,866 B2Mitsubishi Electric Corporation
- Ultraviolet light irradiation device, method of using ultraviolet light irradiation device, and ultraviolet light irradiation method3 Jun 2025US 12,318,495 B2Ushio Denki Kabushiki Kaisha
- Ultraviolet light-emitting module and disinfecting system10 Dec 2024US 12,165,864 B2The Boeing Company
- Excimer lamp envelope uv filter2 Jul 2026US 2026/0188639 A1Excelitas Technologies Corp.
- Inactivation apparatus29 Jan 2026US 2026/0027246 A1Ushio Denki Kabushiki Kaisha
- Method and apparatus for light generation29 Jan 2026US 2026/0031316 A1Excelitas Technologies Corp.
- Ultraviolet light emitting element and ultraviolet light irradiation device provided with the same9 Oct 2025US 2025/0316471 A1Shikoh Tech LLC
- Far ultraviolet light emitting device2 Oct 2025US 2025/0308880 A1LG Electronics Inc.
Most cited
By later US patents
- Luminous lamp having an ultraviolet filtering and explosion proof thin film1,018US 7,394,190 B2Nanoforce Technologies Corporation · 2008
- 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