F21V 21/35
With direct electrical contact between the supporting element and electric conductors running
Official title: with direct electrical contact between the supporting element and electric conductors running along the guiding element
F21V21/35 (With direct electrical contact between the supporting element and electric conductors running) appears on 428 US grants and 413 published applications in this corpus.
Search patents in F21V- Granted patents
- 428
- Published applications
- 413
- Assignees
- 211
- Inventors
- 688
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 10 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 5 | 0 |
| 2001 | 5 | 0 |
| 2002 | 2 | 12 |
| 2003 | 8 | 7 |
| 2004 | 4 | 9 |
| 2005 | 4 | 10 |
| 2006 | 8 | 7 |
| 2007 | 9 | 11 |
| 2008 | 4 | 11 |
| 2009 | 9 | 11 |
| 2010 | 8 | 21 |
| 2011 | 10 | 6 |
| 2012 | 6 | 6 |
| 2013 | 7 | 8 |
| 2014 | 8 | 16 |
| 2015 | 14 | 17 |
| 2016 | 16 | 20 |
| 2017 | 17 | 24 |
| 2018 | 32 | 36 |
| 2019 | 28 | 23 |
| 2020 | 29 | 17 |
| 2021 | 18 | 23 |
| 2022 | 16 | 24 |
| 2023 | 24 | 26 |
| 2024 | 32 | 30 |
| 2025 | 25 | 27 |
| 2026 | 17 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Modular track lighting system8 Sep 2026US 12,729,821 B2ABL IP Holding LLC
- Track light25 Aug 2026US 12,716,576 B2Opple Lighting Co., Ltd.
- Lighting unit for a track lighting system and lighting arrangement18 Aug 2026US 12,710,165 B2H4X e.U.
- Lighting device and kit18 Aug 2026US 12,710,169 B2H4X e.U.
- Track, adapter and track light11 Aug 2026US 12,704,229 B2Opple Lighting Co., Ltd.
- Track-based lighting system8 Oct 2026US 2026/0309289 A1Signify Holding B. V.
- Track lighting system24 Sep 2026US 2026/0287133 A1Signify Holding B. V.
- Electrical module for connecting to a mounting rail, and contacting element therefor17 Sep 2026US 2026/0280206 A1Zumtobel Lighting GmbH
- Interchangeable track light connector/adapter that fits to various single-circuit track systems13 Aug 2026US 2026/0235282 A1Up-shine Lighting Co., Limited
- Wiring duct rail and wiring system30 Jul 2026US 2026/0221740 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Track lighting system with plug-in adapters207US 4,688,154 A1987
- Electrical supply system179US 4,979,081 ACourtney Pope Lighting Limited · 1990
- Flexible high-power LED lighting system149US 7,210,957 B2Lumination LLC · 2007
- Apparatus for supporting a lamp on a low-voltage rail129US 4,907,137 A1990
- Illuminated shelving124US 6,231,205 B1Powerwall, Inc. · 2001