F21W 2131/402
For working places
Official title: for working places
F21W2131/402 (For working places) appears on 243 US grants and 239 published applications in this corpus.
Search patents in F21W- Granted patents
- 243
- Published applications
- 239
- Assignees
- 166
- Inventors
- 459
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 6 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 4 | 3 |
| 2002 | 1 | 3 |
| 2003 | 5 | 2 |
| 2004 | 2 | 1 |
| 2005 | 1 | 1 |
| 2006 | 1 | 6 |
| 2007 | 2 | 5 |
| 2008 | 2 | 9 |
| 2009 | 5 | 2 |
| 2010 | 5 | 7 |
| 2011 | 1 | 2 |
| 2012 | 5 | 7 |
| 2013 | 0 | 6 |
| 2014 | 8 | 15 |
| 2015 | 15 | 12 |
| 2016 | 10 | 14 |
| 2017 | 10 | 15 |
| 2018 | 6 | 17 |
| 2019 | 20 | 19 |
| 2020 | 14 | 19 |
| 2021 | 17 | 16 |
| 2022 | 16 | 11 |
| 2023 | 7 | 14 |
| 2024 | 14 | 15 |
| 2025 | 9 | 8 |
| 2026 | 6 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Elevated structure-mounted lighting system26 May 2026US 12,638,148 B2C&M Oilfield Rentals, LLC
- Dent repair light5 May 2026US 12,618,548 B1
- Cordless work light17 Feb 2026US 12,553,580 B2Milwaukee Electric Tool Corporation
- Adjustable utility lighting system10 Feb 2026US 12,546,462 B2
- Crown deck lighting system27 Jan 2026US 12,535,201 B2Nabors Drilling Technologies USA, Inc.
- Elevated structure-mounted lighting system10 Sep 2026US 2026/0266441 A1C&M Oilfield Rentals, LLC
- Adjustable Utility Lighting System20 Aug 2026US 2026/0243412 A1
- Work light30 Jul 2026US 2026/0218888 A1Streamlight, Inc.
- Emergency pedestal with lighting projection device2 Jul 2026US 2026/0185670 A1Eaton Intelligent Power Limited
- Cordless work light4 Jun 2026US 2026/0153202 A1Milwaukee Electric Tool Corporation
Most cited
By later US patents
- Light emitting panel assemblies and method of making same179US 4,907,132 ALumitex, Inc. · 1990
- Light illumination device142US 4,497,015 ANippon Kogaku K. K. · 1985
- Interior lighting fixture95US 6,161,939 ASemperlux AG · 2000
- Lay-in/recessed lighting fixture having direct/indirect reflectors91US 6,234,643 B12001
- Lighting system83US 7,736,019 B2Yanchers Inc. · 2010