H01J 61/40
By light filters
Official title: by light filters; by coloured coatings in or on the envelope
H01J61/40 (By light filters) appears on 207 US grants and 143 published applications in this corpus.
Search patents in H01J- Granted patents
- 207
- Published applications
- 143
- Assignees
- 107
- Inventors
- 454
- Latest grant
- 21 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 5 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 14 | 0 |
| 1997 | 15 | 0 |
| 1998 | 5 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 9 | 6 |
| 2002 | 11 | 11 |
| 2003 | 11 | 4 |
| 2004 | 8 | 8 |
| 2005 | 5 | 8 |
| 2006 | 4 | 8 |
| 2007 | 4 | 10 |
| 2008 | 10 | 12 |
| 2009 | 3 | 9 |
| 2010 | 4 | 2 |
| 2011 | 1 | 2 |
| 2012 | 1 | 3 |
| 2013 | 1 | 10 |
| 2014 | 3 | 3 |
| 2015 | 3 | 2 |
| 2016 | 3 | 5 |
| 2017 | 4 | 3 |
| 2018 | 3 | 6 |
| 2019 | 3 | 4 |
| 2020 | 9 | 2 |
| 2021 | 4 | 2 |
| 2022 | 3 | 12 |
| 2023 | 5 | 4 |
| 2024 | 4 | 5 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- High-power compact VUV laser-sustained plasma light source21 Oct 2025US 12,452,987 B2KLA 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
- Ultraviolet irradiation device using excimer lamps26 Nov 2024US 12,154,781 B2Ushio Denki Kabushiki Kaisha
- Ultraviolet lamp apparatuses having an automated actuator for moving its lamp while emitting light23 Jul 2024US 12,042,570 B2Xenex Disinfection Services Inc.
- Inactivation apparatus29 Jan 2026US 2026/0027246 A1Ushio Denki Kabushiki Kaisha
- Far ultraviolet light emitting device2 Oct 2025US 2025/0308880 A1LG Electronics Inc.
- Ultraviolet discharge lamp apparatuses7 Nov 2024US 2024/0366821 A1Xenex Disinfection Services Inc.
- High-power compact vuv laser-sustained plasma light source15 Aug 2024US 2024/0274430 A1KLA Corporation
- Vuv laser-sustained plasma light source with long-pass filtering15 Aug 2024US 2024/0276625 A1KLA Corporation
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
- Image projection system engine assembly152US 6,390,626 B1Duke University · 2002
- Discharge lamp device112US 5,220,235 AKoito Manufacturing Co., Ltd. · 1993
- Image projection system engine assembly64US 6,746,122 B2Duke University · 2004
- High efficiency lamp apparatus for producing a beam of polarized light57US 5,833,360 ACompaq Computer Corporation · 1998