F21L 13/00
Electric lighting devices with built-in electric generators
Official title: Electric lighting devices with built-in electric generators (with solar cells F21L4/00)
F21L13/00 (Electric lighting devices with built-in electric generators) appears on 124 US grants and 144 published applications in this corpus.
Search patents in F21L- Granted patents
- 124
- Published applications
- 144
- Assignees
- 85
- Inventors
- 264
- Latest grant
- 9 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 3 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 3 |
| 2003 | 3 | 4 |
| 2004 | 6 | 9 |
| 2005 | 7 | 9 |
| 2006 | 6 | 8 |
| 2007 | 5 | 12 |
| 2008 | 5 | 6 |
| 2009 | 2 | 4 |
| 2010 | 4 | 13 |
| 2011 | 1 | 3 |
| 2012 | 7 | 5 |
| 2013 | 4 | 12 |
| 2014 | 3 | 7 |
| 2015 | 12 | 5 |
| 2016 | 6 | 11 |
| 2017 | 5 | 1 |
| 2018 | 6 | 13 |
| 2019 | 7 | 3 |
| 2020 | 3 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 3 |
| 2023 | 3 | 3 |
| 2024 | 3 | 4 |
| 2025 | 2 | 3 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Mobile solar power unit control system9 Sep 2025US 12,413,085 B2Ecoquip Australia Pty Ltd
- Hybrid light tower28 Jan 2025US 12,209,717 B2Briggs & Stratton Corporation
- Lighted power tool13 Aug 2024US 12,059,780 B2Black & Decker Inc.
- Battery powered light tower16 Apr 2024US 11,959,616 B2Briggs & Stratton Corporation
- Hybrid light tower27 Feb 2024US 11,913,611 B2Briggs & Stratton Corporation
- Mobile solar power unit control system4 Dec 2025US 2025/0373043 A1Ecoquip Australia Pty Ltd
- Hybrid light tower14 Aug 2025US 2025/0257854 A1
- Hybrid light tower29 May 2025US 2025/0172262 A1Briggs & Stratton Corporation
- Lighted power tool14 Nov 2024US 2024/0375253 A1
- Battery powered light tower4 Jul 2024US 2024/0218988 A1Briggs & Stratton Corporation
Most cited
By later US patents
- Renewable energy flashlight204US 5,975,714 AApplied Innovative Technologies, Inc. · 1999
- Flashlight with self-provided power supply means106US 5,552,973 A1996
- Electrical generator with ferrofluid bearings96US 6,812,583 B2Rockwell Scientific Licensing, LLC · 2004
- Renewable energy flashlight86US 6,220,719 B1Applied Innovative Technologies, Inc. · 2001
- Pneumatic lighting apparatus77US 5,267,129 APNU-Light Tool Works, Inc. · 1993