F21V 13/02
Combinations of only two kinds of elements
F21V13/02 (Combinations of only two kinds of elements) appears on 2,765 US grants and 3,025 published applications in this corpus.
Search patents in F21V- Granted patents
- 2,765
- Published applications
- 3,025
- Assignees
- 1,046
- Inventors
- 4,653
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 4 | 0 |
| 1978 | 7 | 0 |
| 1979 | 3 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 11 | 0 |
| 1993 | 8 | 0 |
| 1994 | 5 | 0 |
| 1995 | 11 | 0 |
| 1996 | 9 | 0 |
| 1997 | 12 | 0 |
| 1998 | 14 | 0 |
| 1999 | 15 | 0 |
| 2000 | 22 | 0 |
| 2001 | 26 | 9 |
| 2002 | 27 | 22 |
| 2003 | 31 | 26 |
| 2004 | 30 | 42 |
| 2005 | 31 | 50 |
| 2006 | 37 | 50 |
| 2007 | 45 | 38 |
| 2008 | 28 | 67 |
| 2009 | 33 | 75 |
| 2010 | 44 | 108 |
| 2011 | 64 | 122 |
| 2012 | 81 | 158 |
| 2013 | 126 | 319 |
| 2014 | 196 | 341 |
| 2015 | 223 | 333 |
| 2016 | 269 | 226 |
| 2017 | 230 | 197 |
| 2018 | 212 | 184 |
| 2019 | 228 | 149 |
| 2020 | 174 | 120 |
| 2021 | 127 | 92 |
| 2022 | 90 | 85 |
| 2023 | 82 | 79 |
| 2024 | 77 | 58 |
| 2025 | 49 | 41 |
| 2026 | 30 | 34 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Box-shaped light fixture with diffuser lens having a plurality of diffractive ribs22 Sep 2026US 12,742,537 B2Maxlite, Inc.
- LED grow light system and method15 Sep 2026US 12,736,201 B2
- Optical assembly with swing-adjustable lens and lighting fixture incorporating the same8 Sep 2026US 12,729,833 B1E-Lite Lighting Co., Ltd.
- Wireless controllable lighting device25 Aug 2026US 12,716,575 B2Lutron Technology Company LLC
- Wireless controllable lighting device18 Aug 2026US 12,710,160 B2Lutron Technology Company LLC
- Lightbars with emission collecting optical modules8 Oct 2026US 2026/0309310 A1Whelen Engineering Company, Inc.
- Wireless controllable lighting device8 Oct 2026US 2026/0309313 A1Lutron Technology Company LLC
- Integrated ceiling device with mechanical arrangement for a light source1 Oct 2026US 2026/0298440 A1Lighting Defense Group, LLC
- Lighting arrangement1 Oct 2026US 2026/0298442 A1Signify Holding B. V.
- Method, system, and apparatus for illuminating designer smart accessories24 Sep 2026US 2026/0287166 A1Asher Levine Inc.
Most cited
By later US patents
- Lighting system590US 6,234,648 B1U. S. Philips Corporation · 2001
- Ultraviolet irradiation device of the optical path division type540US 6,124,600 AUshiodenki Kabushiki Kaisha · 2000
- Luminaire508US 6,250,774 B1U. S. Philips Corporation · 2001
- Side emitting LED and lens330US 6,679,621 B2Lumileds Lighting U.S., LLC · 2004
- LED light assembly282US 6,641,284 B2Whelen Engineering Company, Inc. · 2003