F21V 31/00
Gas-tight or water-tight arrangements
F21V31/00 (Gas-tight or water-tight arrangements) appears on 3,166 US grants and 3,136 published applications in this corpus.
Search patents in F21V- Granted patents
- 3,166
- Published applications
- 3,136
- Assignees
- 1,446
- Inventors
- 5,106
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 8 | 0 |
| 1981 | 10 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 6 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 13 | 0 |
| 1990 | 20 | 0 |
| 1991 | 21 | 0 |
| 1992 | 17 | 0 |
| 1993 | 17 | 0 |
| 1994 | 12 | 0 |
| 1995 | 23 | 0 |
| 1996 | 16 | 0 |
| 1997 | 16 | 0 |
| 1998 | 37 | 0 |
| 1999 | 23 | 0 |
| 2000 | 32 | 0 |
| 2001 | 34 | 9 |
| 2002 | 32 | 46 |
| 2003 | 40 | 30 |
| 2004 | 39 | 58 |
| 2005 | 32 | 53 |
| 2006 | 49 | 73 |
| 2007 | 52 | 60 |
| 2008 | 32 | 72 |
| 2009 | 48 | 80 |
| 2010 | 66 | 111 |
| 2011 | 75 | 112 |
| 2012 | 83 | 126 |
| 2013 | 95 | 139 |
| 2014 | 103 | 161 |
| 2015 | 119 | 204 |
| 2016 | 150 | 160 |
| 2017 | 163 | 261 |
| 2018 | 210 | 238 |
| 2019 | 260 | 188 |
| 2020 | 218 | 192 |
| 2021 | 178 | 172 |
| 2022 | 173 | 117 |
| 2023 | 139 | 139 |
| 2024 | 173 | 119 |
| 2025 | 155 | 123 |
| 2026 | 101 | 93 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Shoe box lamp29 Sep 2026US 12,747,851 B2Torshare Ltd.
- Scuba light with offset battery cases22 Sep 2026US 12,742,525 B1
- Airtight light fixture trim retention22 Sep 2026US 12,742,542 B2Signify Holding B. V.
- Nicheless pool and spa light15 Sep 2026US 12,736,209 B1Aquastar Pool Products, Inc.
- Personal care appliance with light-emitting end cover8 Sep 2026US 12,727,982 B2Shanghai Shift Electrics Co., Ltd.
- Led device and led light fixture8 Oct 2026US 2026/0309321 A1Shanghai Weili Advanced Electronic Technology Co., Ltd.
- Water feature with integrated lighting system1 Oct 2026US 2026/0298428 A1Bellson Electric Pty Ltd
- Inflatable lighting device1 Oct 2026US 2026/0298437 A1Ztarx Corporation Limited
- Lighting device1 Oct 2026US 2026/0298446 A1Koito Manufacturing Co., Ltd.
- Illumination Apparatus for the Cover of a Sewage or Sump Pump Basin1 Oct 2026US 2026/0298459 A1
Most cited
By later US patents
- Thermal management system for L.E.D. arrays482US 5,857,767 ARelume Corporation · 1999
- Signal light unit having heat dissipating function456US 4,729,076 A1988
- Light emitting diode light strip400US 6,283,612 B12001
- Integrally formed linear light strip with light emitting diodes362US 5,848,837 AStanTech · 1998
- Compact, flexible, LED array320US 6,371,637 B1Radiantz, Inc. · 2002