F21
Lighting
F21 (Lighting) appears on 63,984 US grants and 65,034 published applications in this corpus.
Search patents in F21- Granted patents
- 63,984
- Published applications
- 65,034
- Assignees
- 14,567
- Inventors
- 76,214
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 241 | 0 |
| 1977 | 221 | 0 |
| 1978 | 222 | 0 |
| 1979 | 162 | 0 |
| 1980 | 253 | 0 |
| 1981 | 237 | 0 |
| 1982 | 216 | 0 |
| 1983 | 234 | 0 |
| 1984 | 247 | 0 |
| 1985 | 280 | 0 |
| 1986 | 287 | 0 |
| 1987 | 331 | 0 |
| 1988 | 352 | 0 |
| 1989 | 453 | 0 |
| 1990 | 452 | 0 |
| 1991 | 512 | 0 |
| 1992 | 485 | 0 |
| 1993 | 397 | 0 |
| 1994 | 418 | 0 |
| 1995 | 523 | 0 |
| 1996 | 525 | 0 |
| 1997 | 583 | 0 |
| 1998 | 648 | 0 |
| 1999 | 679 | 0 |
| 2000 | 803 | 0 |
| 2001 | 846 | 251 |
| 2002 | 888 | 918 |
| 2003 | 978 | 1029 |
| 2004 | 796 | 1242 |
| 2005 | 758 | 1515 |
| 2006 | 941 | 1649 |
| 2007 | 1007 | 1559 |
| 2008 | 897 | 1857 |
| 2009 | 1015 | 2121 |
| 2010 | 1372 | 2450 |
| 2011 | 1411 | 2540 |
| 2012 | 1653 | 2726 |
| 2013 | 2096 | 3466 |
| 2014 | 2370 | 3772 |
| 2015 | 2703 | 3860 |
| 2016 | 2916 | 3503 |
| 2017 | 3231 | 3864 |
| 2018 | 3559 | 3990 |
| 2019 | 4551 | 3955 |
| 2020 | 4052 | 3693 |
| 2021 | 3395 | 3145 |
| 2022 | 3138 | 2965 |
| 2023 | 2777 | 2553 |
| 2024 | 2836 | 2555 |
| 2025 | 2510 | 2166 |
| 2026 | 1527 | 1690 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- F21VFunctional features or details of lighting devices or systems thereof48,956
- F21YIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to31,011
- F21SNon-portable lighting devices30,805
- F21WIndexing scheme associated with subclasses f21k, f21l, f21s and f21v, relating to14,253
- F21KNon-electric light sources using luminescence11,494
- F21LLighting devices or systems thereof, being portable or specially adapted for transportation4,605
- F21HIncandescent mantles29
Recent patents
- Caulk nozzle lighting system6 Oct 2026US 12,752,298 B2
- Glass assembly, vehicle window glass and vehicle6 Oct 2026US 12,752,607 B2Saint-Gobain Sekurit France
- Method of operating a marine lighting system6 Oct 2026US 12,752,890 B2Ocean LED Marine Limited
- Method and composition for lightning protection6 Oct 2026US 12,753,547 B2
- Ceiling fan with a quick connect assembly6 Oct 2026US 12,753,775 B2Hunter Fan Company
- Trimming tool8 Oct 2026US 2026/0305536 A1Lawnix Technology (Nanjing) Co., Ltd.
- Light source device, light reflection member, and translucent member8 Oct 2026US 2026/0305593 A1Fkk Corporation
- Lighting element with insect repelling element8 Oct 2026US 2026/0305598 A1PIC Corporation
- An Aerosol Generating Device and a Method for Making a Light Diffuser for an Aerosol Generating Device8 Oct 2026US 2026/0305724 A1JT International SA
- Airframe system and method of controlling airflow8 Oct 2026US 2026/0306210 A1SLD Technology, Inc.
Most cited
By later US patents
- Illumination components1,698US 6,211,626 B1Color Kinetics Incorporated · 2001
- Multicolored LED lighting method and apparatus1,174US 6,016,038 AColor Kinetics Incorporated · 2000
- Protective cover for a lighting device1,137US 6,185,356 B2Lumitex, Inc. · 2001
- Preparedness flashlight1,025US 7,780,309 B2Eveready Battery Company, Inc. · 2010
- Illumination devices using natural light LEDs1,018US 8,992,042 B2Halma Holdings, Inc. · 2015