F21L 14/00
Electric lighting devices without a self-contained power source
Official title: Electric lighting devices without a self-contained power source, e.g. for mains connection
F21L14/00 (Electric lighting devices without a self-contained power source) appears on 607 US grants and 443 published applications in this corpus.
Search patents in F21L- Granted patents
- 607
- Published applications
- 443
- Assignees
- 250
- Inventors
- 880
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 12 | 0 |
| 1981 | 11 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 7 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 9 | 0 |
| 1991 | 9 | 0 |
| 1992 | 9 | 0 |
| 1993 | 10 | 0 |
| 1994 | 7 | 0 |
| 1995 | 21 | 0 |
| 1996 | 9 | 0 |
| 1997 | 4 | 0 |
| 1998 | 16 | 0 |
| 1999 | 9 | 0 |
| 2000 | 12 | 0 |
| 2001 | 14 | 2 |
| 2002 | 13 | 14 |
| 2003 | 15 | 14 |
| 2004 | 14 | 24 |
| 2005 | 22 | 29 |
| 2006 | 16 | 38 |
| 2007 | 24 | 23 |
| 2008 | 21 | 24 |
| 2009 | 15 | 18 |
| 2010 | 17 | 18 |
| 2011 | 10 | 19 |
| 2012 | 17 | 18 |
| 2013 | 14 | 12 |
| 2014 | 14 | 14 |
| 2015 | 13 | 12 |
| 2016 | 13 | 16 |
| 2017 | 13 | 11 |
| 2018 | 7 | 13 |
| 2019 | 16 | 16 |
| 2020 | 17 | 27 |
| 2021 | 20 | 15 |
| 2022 | 19 | 15 |
| 2023 | 16 | 13 |
| 2024 | 19 | 17 |
| 2025 | 17 | 14 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Simple and portable camping light2 Jun 2026US 12,644,589 B2Taizhou Wanchang Electronic Technology Co., Ltd.
- Transportable single unit parabolic lighting system26 May 2026US 12,638,160 B2Cinelease, LLC
- Heat lamp19 May 2026US 12,628,980 B2Spring (U.S.A.) Corporation
- Flexible lighting system for carrying bag or container with an exterior control panel and externally deployable flexible light strip21 Apr 2026US 12,607,313 B2Frontline Lighting LLC
- System of interconnectable portable lighting devices with locking hasps10 Feb 2026US 12,546,444 B2Milwaukee Electric Tool Corporation
- Transportable single unit parabolic lighting system17 Sep 2026US 2026/0276180 A1Cinelease, LLC
- Apparatus, method, and system for mobile, temporary, or supplemental lighting3 Sep 2026US 2026/0258916 A1Musco Corporation
- Area light6 Aug 2026US 2026/0227058 A1Southwire Company
- Outdoor portable light16 Jul 2026US 2026/0202044 A1Homesports, LLC
- Portable area light14 May 2026US 2026/0132898 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Lighting device165US 4,947,291 A1990
- LED work light150US 6,857,756 B2General Manufacturing, Inc. · 2005
- Universal trouble light117US 4,258,414 APlymouth Products, Inc. · 1981
- Wearable light device with optical sensor117US 6,966,668 B2NOAH Systems, LLC · 2005
- Illumination device for mounting on the head of a user112US 5,722,762 A1998