F21V 29/74
With fins or blades
Official title: with fins or blades
F21V29/74 (With fins or blades) appears on 4,408 US grants and 5,418 published applications in this corpus.
Search patents in F21V- Granted patents
- 4,408
- Published applications
- 5,418
- Assignees
- 1,571
- Inventors
- 6,672
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 4 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 9 | 0 |
| 1988 | 9 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 10 | 0 |
| 1993 | 6 | 0 |
| 1994 | 8 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 11 | 0 |
| 1998 | 16 | 0 |
| 1999 | 14 | 0 |
| 2000 | 14 | 0 |
| 2001 | 9 | 6 |
| 2002 | 16 | 31 |
| 2003 | 34 | 29 |
| 2004 | 23 | 65 |
| 2005 | 32 | 89 |
| 2006 | 62 | 101 |
| 2007 | 70 | 134 |
| 2008 | 72 | 204 |
| 2009 | 109 | 388 |
| 2010 | 223 | 431 |
| 2011 | 257 | 443 |
| 2012 | 278 | 504 |
| 2013 | 327 | 443 |
| 2014 | 339 | 407 |
| 2015 | 308 | 317 |
| 2016 | 291 | 294 |
| 2017 | 303 | 306 |
| 2018 | 279 | 259 |
| 2019 | 320 | 228 |
| 2020 | 258 | 226 |
| 2021 | 193 | 140 |
| 2022 | 139 | 111 |
| 2023 | 114 | 87 |
| 2024 | 95 | 70 |
| 2025 | 57 | 54 |
| 2026 | 46 | 51 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F21V 29/76With essentially identical parallel planar fins or blades1,772
- F21V 29/77With essentially identical diverging planar fins or blades1,495
- F21V 29/75With fins or blades having different shapes, thicknesses or spacing649
- F21V 29/745The fins or blades being planar and inclined with respect to the158
- F21V 29/78With helically or spirally arranged fins or blades106
Recent patents
- Ensemble light source6 Oct 2026US 12,756,150 B1KYOCERA SLD Laser, Inc.
- Shoe box lamp29 Sep 2026US 12,747,851 B2Torshare Ltd.
- Cylindrical light fixture29 Sep 2026US 12,747,855 B1
- LED lamp29 Sep 2026US 12,747,856 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Heat sink for electronic component and associated manufacturing method22 Sep 2026US 12,742,541 B2Valeo Vision
- Operating lamp8 Oct 2026US 2026/0309312 A1FARO Fabbrica Apparecchiature Razionali Odontoiatriche S.p.A.
- Collimated optical source1 Oct 2026US 2026/0298438 A1Lumos Technology Co., Ltd.
- Integrated ceiling device with mechanical arrangement for a light source1 Oct 2026US 2026/0298440 A1Lighting Defense Group, LLC
- Lighting device1 Oct 2026US 2026/0298446 A1Koito Manufacturing Co., Ltd.
- Led luminaire thermal management system1 Oct 2026US 2026/0298456 A1FOHSE Inc.
Most cited
By later US patents
- LED vehicle lamp assembly654US 5,632,551 AGrote Industries, Inc. · 1997
- Lighting methods and systems641US 7,178,941 B2Color Kinetics Incorporated · 2007
- Indicators and illuminators using a semiconductor radiation emitter package518US 6,441,943 B1Gentex Corporation · 2002
- Vehicular lamp502US 4,733,335 AKoito Manufacturing Co., Ltd. · 1988
- Illuminating device487US 5,136,483 A1992