F21V 5/00
Refractors for light sources
Official title: Refractors for light sources (characterised by cooling arrangements F21V29/504)
F21V5/00 (Refractors for light sources) appears on 6,811 US grants and 7,417 published applications in this corpus.
Search patents in F21V- Granted patents
- 6,811
- Published applications
- 7,417
- Assignees
- 2,269
- Inventors
- 9,758
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 8 | 0 |
| 1978 | 11 | 0 |
| 1979 | 5 | 0 |
| 1980 | 8 | 0 |
| 1981 | 11 | 0 |
| 1982 | 2 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 12 | 0 |
| 1986 | 8 | 0 |
| 1987 | 18 | 0 |
| 1988 | 10 | 0 |
| 1989 | 14 | 0 |
| 1990 | 27 | 0 |
| 1991 | 24 | 0 |
| 1992 | 18 | 0 |
| 1993 | 19 | 0 |
| 1994 | 17 | 0 |
| 1995 | 27 | 0 |
| 1996 | 31 | 0 |
| 1997 | 34 | 0 |
| 1998 | 38 | 0 |
| 1999 | 40 | 0 |
| 2000 | 46 | 0 |
| 2001 | 55 | 18 |
| 2002 | 42 | 65 |
| 2003 | 70 | 66 |
| 2004 | 60 | 103 |
| 2005 | 59 | 117 |
| 2006 | 78 | 149 |
| 2007 | 101 | 110 |
| 2008 | 83 | 154 |
| 2009 | 88 | 166 |
| 2010 | 122 | 257 |
| 2011 | 166 | 292 |
| 2012 | 171 | 326 |
| 2013 | 233 | 439 |
| 2014 | 286 | 471 |
| 2015 | 333 | 510 |
| 2016 | 393 | 428 |
| 2017 | 436 | 520 |
| 2018 | 428 | 524 |
| 2019 | 625 | 506 |
| 2020 | 564 | 461 |
| 2021 | 488 | 369 |
| 2022 | 378 | 362 |
| 2023 | 354 | 288 |
| 2024 | 330 | 281 |
| 2025 | 263 | 238 |
| 2026 | 156 | 197 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F21V 5/04Refractors for light sources: of lens shape4,137
- F21V 5/007Array of lenses or refractors for a cluster of light sources1,199
- F21V 5/02Refractors for light sources: of prismatic shape753
- F21V 5/008Combination of two or more successive refractors along an optical axis719
- F21V 5/002Refractors for light sources: using microoptical elements for redirecting or diffusing light712
- F21V 5/10Comprising photoluminescent material306
- F21V 5/08Producing an asymmetric light distribution301
- F21V 5/006Applied to portable lighting devices135
All 9 subgroupsShow fewer
Recent patents
- Vehicle lamp6 Oct 2026US 12,753,896 B2SL Corporation
- Luminaire with replaceable LED board6 Oct 2026US 12,753,907 B2Halco Lighting Technologies, LLC
- High luminous-efficacy industrial lighting device6 Oct 2026US 12,753,908 B2Xiamen PVTECH Co., Ltd.
- Light emitting module6 Oct 2026US 12,754,456 B2Nichia Corporation
- Ensemble light source6 Oct 2026US 12,756,150 B1KYOCERA SLD Laser, Inc.
- Airframe system and method of controlling airflow8 Oct 2026US 2026/0306210 A1SLD Technology, Inc.
- Lamp with transparent anti-glare dual-lens structure8 Oct 2026US 2026/0309303 A1Zhongshan Zuodeng Lighting and Electrical Co., Ltd.
- Lighting device8 Oct 2026US 2026/0309304 A1Signify Holding B. V.
- Wide-angle emission collecting optical systems8 Oct 2026US 2026/0309305 A1Whelen Engineering Company, Inc.
- Lightbars with emission collecting optical modules8 Oct 2026US 2026/0309310 A1Whelen Engineering Company, Inc.
Most cited
By later US patents
- Illuminator assembly incorporating light emitting diodes881US 5,803,579 AGentex Corporation · 1998
- Led assembly631US 6,132,072 AGentex Corporation · 2000
- Luminaire508US 6,250,774 B1U. S. Philips Corporation · 2001
- Vehicular lamp502US 4,733,335 AKoito Manufacturing Co., Ltd. · 1988
- Mirror assembly459US 5,788,357 AK. W. Muth Company, Inc. · 1998