F21V 21/34
Supporting elements displaceable along a guiding element
Official title: Supporting elements displaceable along a guiding element {(telescopic mounting of lighting devices F21V21/22)}
F21V21/34 (Supporting elements displaceable along a guiding element) appears on 774 US grants and 686 published applications in this corpus.
Search patents in F21V- Granted patents
- 774
- Published applications
- 686
- Assignees
- 385
- Inventors
- 1,260
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 6 | 0 |
| 1988 | 14 | 0 |
| 1989 | 15 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 12 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 10 | 0 |
| 2000 | 12 | 0 |
| 2001 | 12 | 0 |
| 2002 | 8 | 15 |
| 2003 | 13 | 14 |
| 2004 | 8 | 12 |
| 2005 | 6 | 19 |
| 2006 | 11 | 14 |
| 2007 | 16 | 18 |
| 2008 | 7 | 17 |
| 2009 | 14 | 17 |
| 2010 | 11 | 31 |
| 2011 | 16 | 18 |
| 2012 | 18 | 15 |
| 2013 | 18 | 26 |
| 2014 | 16 | 26 |
| 2015 | 30 | 30 |
| 2016 | 25 | 39 |
| 2017 | 35 | 49 |
| 2018 | 51 | 47 |
| 2019 | 44 | 41 |
| 2020 | 52 | 34 |
| 2021 | 34 | 35 |
| 2022 | 29 | 32 |
| 2023 | 36 | 38 |
| 2024 | 41 | 43 |
| 2025 | 38 | 36 |
| 2026 | 24 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ceiling lamp mounting structure and ceiling lamp29 Sep 2026US 12,747,841 B2Opple Lighting Co., Ltd.
- 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-based lighting system8 Oct 2026US 2026/0309289 A1Signify Holding B. V.
- Linear luminaires and devices and methods for connecting linear luminaires1 Oct 2026US 2026/0298422 A1
- 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
Most cited
By later US patents
- LED-based fixtures and related methods for thermal management313US 7,828,465 B2Koninlijke Philips Electronis N.V. · 2010
- Track lighting system with plug-in adapters207US 4,688,154 A1987
- Lighting assembly184US 4,656,398 A1987
- Electrical supply system179US 4,979,081 ACourtney Pope Lighting Limited · 1990
- Rotating bracket172US 4,932,620 A1990