F21V 17/104
Using feather joints
Official title: {using feather joints, e.g. tongues and grooves, with or without friction}
F21V17/104 (Using feather joints) appears on 295 US grants and 306 published applications in this corpus.
Search patents in F21V- Granted patents
- 295
- Published applications
- 306
- Assignees
- 197
- Inventors
- 688
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 3 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 6 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 3 | 4 |
| 2003 | 4 | 3 |
| 2004 | 1 | 3 |
| 2005 | 2 | 7 |
| 2006 | 5 | 7 |
| 2007 | 7 | 8 |
| 2008 | 1 | 4 |
| 2009 | 5 | 9 |
| 2010 | 3 | 12 |
| 2011 | 4 | 17 |
| 2012 | 14 | 20 |
| 2013 | 8 | 19 |
| 2014 | 9 | 17 |
| 2015 | 12 | 17 |
| 2016 | 13 | 21 |
| 2017 | 15 | 20 |
| 2018 | 20 | 18 |
| 2019 | 14 | 10 |
| 2020 | 13 | 14 |
| 2021 | 20 | 24 |
| 2022 | 21 | 18 |
| 2023 | 17 | 13 |
| 2024 | 16 | 6 |
| 2025 | 14 | 10 |
| 2026 | 5 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Locking structure of Bowens mount11 Aug 2026US 12,704,240 B2Aputure Imaging Industries Co., Ltd.
- Lens and LED lamp having the same28 Apr 2026US 12,613,022 B2Shenzhen Snc Opto Electronic Co., Ltd
- Lighting device assembly with adjustment mechanism21 Apr 2026US 12,607,328 B2Troy-CSL Lighting, Inc.
- Device with a built in antenna17 Feb 2026US 12,553,579 B2Signify Holding B. V.
- Candle lamp10 Feb 2026US 12,546,446 B2
- Electrical connector installation structure for electrical appliance, and fan lamp2 Jul 2026US 2026/0185695 A1Foshan Weina Lighting Appliance Co., Ltd.
- Light-emitting device19 Mar 2026US 2026/0078889 A1Nichia Corporation
- Lens and led lamp having the same19 Feb 2026US 2026/0049706 A1Shenzhen Snc Opto Electronic Co., Ltd
- Removable light assembly for convertible garage door opener5 Feb 2026US 2026/0036286 A1
- Lighting device assembly with adjustment mechanism29 Jan 2026US 2026/0029110 A1Troy-CSL Lighting, Inc.
Most cited
By later US patents
- LED lighting unit including elongated heat sink and elongated lens241US 7,815,338 B2Altair Engineering, Inc. · 2010
- LED lighting system198US 7,307,391 B2LED Smart Inc. · 2007
- LED-based lighting methods, apparatus, and systems employing LED light bars, occupancy sensing, local state machine, and meter circuit196US 8,138,690 B2Digital Lumens Incorporated · 2012
- Illumination systems130US 4,748,545 AReflector Hardware Corporation · 1988
- Flourescent light fixture110US 6,908,212 B22005