F21W 2131/403
For machines
Official title: for machines
F21W2131/403 (For machines) appears on 70 US grants and 78 published applications in this corpus.
Search patents in F21W- Granted patents
- 70
- Published applications
- 78
- Assignees
- 55
- Inventors
- 141
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 1 | 0 |
| 1987 | 0 | 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 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 4 |
| 2015 | 1 | 10 |
| 2016 | 7 | 10 |
| 2017 | 9 | 4 |
| 2018 | 6 | 3 |
| 2019 | 9 | 7 |
| 2020 | 2 | 6 |
| 2021 | 6 | 6 |
| 2022 | 4 | 2 |
| 2023 | 5 | 5 |
| 2024 | 2 | 0 |
| 2025 | 0 | 2 |
| 2026 | 4 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Caulk nozzle lighting system6 Oct 2026US 12,752,298 B2
- Housing assembly with all-round visible luminous areas23 Jun 2026US 12,663,141 B2Murrelektronik GmbH
- Elevated structure-mounted lighting system26 May 2026US 12,638,148 B2C&M Oilfield Rentals, LLC
- Crown deck lighting system27 Jan 2026US 12,535,201 B2Nabors Drilling Technologies USA, Inc.
- Robot charging dock with illuminated charge connector10 Dec 2024US 12,162,141 B2Locus Robotics Corp.
- Elevated structure-mounted lighting system10 Sep 2026US 2026/0266441 A1C&M Oilfield Rentals, LLC
- Crown deck lighting system12 Mar 2026US 2026/0071740 A1Nabors Drilling Technologies USA, Inc.
- Caulk nozzle lighting system29 Jan 2026US 2026/0027582 A1
- Housing assembly with all-round visible luminous areas10 Jul 2025US 2025/0224094 A1Murrelektronik GmbH
- Crown deck lighting system19 Jun 2025US 2025/0198606 A1Nabors Drilling Technologies USA, Inc.
Most cited
By later US patents
- Extensible linear light emitting diode illumination source77US 6,880,952 B2Wintriss Engineering Corporation · 2005
- Stitchery light-base and clamp60US 5,180,220 A1993
- Illumination system18US 5,743,629 AEaton Corporation · 1998
- Display lamp15US 6,471,371 B1Patlite Corporation · 2002
- Apparatus and method for providing a modular vehicle light device15US 7,059,754 B2North American Lighting, Inc. · 2006