F21V 21/28
Adjustable in more than one plane
Official title: adjustable in more than one plane
F21V21/28 (Adjustable in more than one plane) appears on 462 US grants and 438 published applications in this corpus.
Search patents in F21V- Granted patents
- 462
- Published applications
- 438
- Assignees
- 240
- Inventors
- 734
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 4 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 6 | 0 |
| 1991 | 3 | 0 |
| 1992 | 7 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 0 |
| 2002 | 7 | 6 |
| 2003 | 6 | 4 |
| 2004 | 7 | 9 |
| 2005 | 5 | 7 |
| 2006 | 6 | 6 |
| 2007 | 5 | 8 |
| 2008 | 1 | 11 |
| 2009 | 4 | 19 |
| 2010 | 13 | 13 |
| 2011 | 13 | 17 |
| 2012 | 8 | 14 |
| 2013 | 12 | 15 |
| 2014 | 18 | 14 |
| 2015 | 9 | 20 |
| 2016 | 9 | 18 |
| 2017 | 17 | 29 |
| 2018 | 21 | 25 |
| 2019 | 29 | 23 |
| 2020 | 30 | 35 |
| 2021 | 24 | 26 |
| 2022 | 31 | 27 |
| 2023 | 35 | 35 |
| 2024 | 39 | 27 |
| 2025 | 21 | 17 |
| 2026 | 8 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Retractable support and lighting fixture8 Sep 2026US 12,729,843 B2Shenzhen Guangsu Electronic Technology Co., Ltd.
- Attachable pedicure lamp device21 Jul 2026US 12,687,290 B2
- Battery powered light24 Mar 2026US 12,584,615 B2Black & Decker Inc.
- Power strip with foldable lamp24 Mar 2026US 12,584,622 B1Tonghua Intelligent Technology Co., Ltd
- Reverse-lock hand holding assembly and stage light fixture having same10 Mar 2026US 12,571,525 B2Guangzhou Haoyang Electronic Co., Ltd.
- Operating lamp8 Oct 2026US 2026/0309308 A1F.A.R.O. Fabbrica Apparecchia-Ture Razionali Odontoiatriche S.P.A.
- Luminaire provided with a uv lighting module1 Oct 2026US 2026/0298461 A1Signify Holding B. V.
- Multi-joint lighting device including the tension arm assembly27 Aug 2026US 2026/0251290 A1Dentis Co., Ltd.
- Spring arm device and support arm system for holding a medical appliance and/or lighting appliance20 Aug 2026US 2026/0243391 A1
- Work light30 Jul 2026US 2026/0218888 A1Streamlight, Inc.
Most cited
By later US patents
- Articulable column430US 4,949,927 A1990
- Ball jointed links247US 5,383,738 ASyron Engineering & Manufacturing, LLC · 1995
- Universally positionable mounting device232US 5,845,885 ANational Products, Inc. · 1998
- Universal trouble light117US 4,258,414 APlymouth Products, Inc. · 1981
- Ergonomic equipment arm114US 5,092,552 AWang Laboratories, Inc. · 1992