F21V 19/0075
Fastening of light sources or lamp holders: of tubular light sources
Official title: {of tubular light sources, e.g. ring-shaped fluorescent light sources}
F21V19/0075 (Fastening of light sources or lamp holders: of tubular light sources) appears on 753 US grants and 544 published applications in this corpus.
Search patents in F21V- Granted patents
- 753
- Published applications
- 544
- Assignees
- 365
- Inventors
- 1,232
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 4 | 0 |
| 1978 | 5 | 0 |
| 1979 | 5 | 0 |
| 1980 | 5 | 0 |
| 1981 | 7 | 0 |
| 1982 | 6 | 0 |
| 1983 | 8 | 0 |
| 1984 | 4 | 0 |
| 1985 | 8 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 13 | 0 |
| 1991 | 19 | 0 |
| 1992 | 9 | 0 |
| 1993 | 16 | 0 |
| 1994 | 14 | 0 |
| 1995 | 12 | 0 |
| 1996 | 18 | 0 |
| 1997 | 14 | 0 |
| 1998 | 31 | 0 |
| 1999 | 11 | 0 |
| 2000 | 22 | 0 |
| 2001 | 17 | 3 |
| 2002 | 16 | 9 |
| 2003 | 16 | 20 |
| 2004 | 17 | 26 |
| 2005 | 18 | 36 |
| 2006 | 25 | 30 |
| 2007 | 21 | 36 |
| 2008 | 19 | 43 |
| 2009 | 33 | 38 |
| 2010 | 25 | 40 |
| 2011 | 25 | 26 |
| 2012 | 30 | 14 |
| 2013 | 20 | 29 |
| 2014 | 14 | 18 |
| 2015 | 16 | 19 |
| 2016 | 19 | 28 |
| 2017 | 30 | 24 |
| 2018 | 22 | 19 |
| 2019 | 23 | 21 |
| 2020 | 22 | 18 |
| 2021 | 14 | 17 |
| 2022 | 12 | 7 |
| 2023 | 12 | 7 |
| 2024 | 12 | 6 |
| 2025 | 8 | 6 |
| 2026 | 5 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Lighting device with a rotatable suspension structure9 Jun 2026US 12,650,217 B2Shinegrow (Xiamen) Lighting Technology Co., LTD.
- LED tube lamp26 May 2026US 12,638,141 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- LED tube lamp19 May 2026US 12,631,300 B2Jiaxing Super Lighting Electric Appliance Co., Ltd
- Stage lighting apparatus with adjustable lighting properties and adjustment method therefor17 Mar 2026US 12,578,083 B1Suzhou University of Science and Technology
- Spliced lamp post and lamp17 Feb 2026US 12,553,592 B1Huaxin (Dongguan) Lighting Co., Ltd
- Led tube lamp20 Aug 2026US 2026/0243397 A1Jiaxing Super Lighting Electric Appliance Co., Ltd
- Detachable fan lamp convenient for packaging and transportation23 Apr 2026US 2026/0110422 A1Fandelier Inc.
- Stage lighting apparatus with adjustable lighting properties and adjustment method therefor19 Mar 2026US 2026/0078893 A1Suzhou University of Science and Technology
- Lamp with hybrid connector and lamp assembly having the same29 Jan 2026US 2026/0029096 A1Xiamen PVTECH Co., Ltd.
- Holder having a mistake-proof structure and lighting device having the same10 Jul 2025US 2025/0226630 A1Xiamen PVTECH Co., Ltd.
Most cited
By later US patents
- Light tube and power supply circuit300US 7,049,761 B2Altair Engineering, Inc. · 2006
- LED lighting device for replacing fluorescent tubes268US 7,510,299 B2Altair Engineering, Inc. · 2009
- Light source for display device217US 5,726,722 ACanon Kabushiki Kaisha · 1998
- Electrical supply system179US 4,979,081 ACourtney Pope Lighting Limited · 1990
- Communications system using bets175US 6,443,841 B12002