F21K 9/62
Using mixing chambers
Official title: using mixing chambers, e.g. housings with reflective walls
F21K9/62 (Using mixing chambers) appears on 443 US grants and 525 published applications in this corpus.
Search patents in F21K- Granted patents
- 443
- Published applications
- 525
- Assignees
- 160
- Inventors
- 687
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2005 | 0 | 2 |
| 2006 | 2 | 6 |
| 2007 | 2 | 9 |
| 2008 | 2 | 18 |
| 2009 | 7 | 11 |
| 2010 | 9 | 26 |
| 2011 | 18 | 27 |
| 2012 | 27 | 37 |
| 2013 | 21 | 49 |
| 2014 | 35 | 46 |
| 2015 | 34 | 59 |
| 2016 | 41 | 47 |
| 2017 | 52 | 34 |
| 2018 | 36 | 37 |
| 2019 | 43 | 31 |
| 2020 | 30 | 27 |
| 2021 | 26 | 15 |
| 2022 | 16 | 17 |
| 2023 | 12 | 8 |
| 2024 | 12 | 7 |
| 2025 | 10 | 5 |
| 2026 | 4 | 5 |
By publication year. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Lighting device and lighting method856US 7,213,940 B1LED Lighting Fixtures, Inc. · 2007
- LED lighting system for producing white light229US 6,234,645 B1U. S. Philips Corporation · 2001
- Optical system using LED coupled with phosphor-doped reflective materials206US 7,144,131 B2Advanced Optical Technologies, LLC · 2006
- Low profile light and accessory kit for the same118US 8,672,518 B2Lighting Science Group Corporation · 2014
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