F21K 9/64
Using wavelength conversion means distinct or spaced from the light-generating element
Official title: using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
F21K9/64 (Using wavelength conversion means distinct or spaced from the light-generating element) appears on 1,883 US grants and 2,319 published applications in this corpus.
Search patents in F21K- Granted patents
- 1,883
- Published applications
- 2,319
- Assignees
- 501
- Inventors
- 2,875
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 5 | 4 |
| 2003 | 7 | 10 |
| 2004 | 7 | 2 |
| 2005 | 1 | 4 |
| 2006 | 4 | 3 |
| 2007 | 4 | 20 |
| 2008 | 2 | 20 |
| 2009 | 14 | 31 |
| 2010 | 24 | 85 |
| 2011 | 28 | 107 |
| 2012 | 77 | 145 |
| 2013 | 87 | 176 |
| 2014 | 133 | 231 |
| 2015 | 134 | 279 |
| 2016 | 198 | 179 |
| 2017 | 180 | 197 |
| 2018 | 191 | 183 |
| 2019 | 212 | 162 |
| 2020 | 160 | 129 |
| 2021 | 116 | 101 |
| 2022 | 80 | 71 |
| 2023 | 71 | 61 |
| 2024 | 71 | 53 |
| 2025 | 58 | 42 |
| 2026 | 16 | 24 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
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