F21K 2/005
Excited by infrared radiation using up-conversion
Official title: {excited by infrared radiation using up-conversion}
F21K2/005 (Excited by infrared radiation using up-conversion) appears on 20 US grants and 14 published applications in this corpus.
Search patents in F21K- Granted patents
- 20
- Published applications
- 14
- Assignees
- 14
- Inventors
- 47
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 6 | 5 |
| 2019 | 1 | 0 |
| 2020 | 1 | 3 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Light absorbing and light emitting devices, light admitting assemblies, and methods of absorbing and emitting light16 Jan 2024US 11,873,682 B2
- White light source and method of white light generation20 Oct 2020US 10,808,915 B2Instytut Niskich Temperatur I Badan Strukturalnych Pan Im.W. Trzebiatowskiego
- Device for indicating a turn signal on a motor vehicle window28 May 2019US 10,300,844 B2Ford Global Technologies, LLC
- Photoluminescent vehicle appliques27 Nov 2018US 10,137,826 B2Ford Global Technologies, LLC
- Transparent wood composite, method for preparing the same, and optical film comprising the same9 Jul 2026US 2026/0192486 A1Hyundai Motor Company
- Photoluminescence keyboard glyph lighting4 Jan 2024US 2024/0003528 A1Apple Inc.
- Luminescent bird of prey replica27 Oct 2022US 2022/0338462 A1
- Next generation of light-emitting plant longer duration and brighter5 Nov 2020US 2020/0347392 A1Massachusetts Institute of Technology
- Light absorbing and light emitting devices, light admitting assemblies, and methods of absorbing and emitting light1 Oct 2020US 2020/0308906 A1
Most cited
By later US patents
- Method and apparatus for recording and reproducing a radiation image99US 4,239,968 AFuji Photo Film Co., Ltd. · 1980
- Method and apparatus for recording and reproducing a radiation image54US 4,236,078 AFuji Photo Film Co., Ltd. · 1980
- Phosphor39US 4,261,854 AFuji Photo Film Co., Ltd. · 1981
- IR light emitting apparatus with visible detection means27US 4,599,537 A1986
- Rare earth ceramic for frequency conversion of radiation14US 4,032,351 A1977