H01H 2219/036
Light emitting elements
H01H2219/036 (Light emitting elements) appears on 1,021 US grants and 1,094 published applications in this corpus.
Search patents in H01H- Granted patents
- 1,021
- Published applications
- 1,094
- Assignees
- 464
- Inventors
- 1,834
- Latest grant
- 14 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 12 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 3 | 0 |
| 1989 | 9 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 7 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 12 | 0 |
| 1999 | 12 | 0 |
| 2000 | 13 | 0 |
| 2001 | 14 | 12 |
| 2002 | 13 | 16 |
| 2003 | 16 | 22 |
| 2004 | 17 | 32 |
| 2005 | 17 | 43 |
| 2006 | 21 | 27 |
| 2007 | 35 | 54 |
| 2008 | 22 | 51 |
| 2009 | 30 | 74 |
| 2010 | 38 | 61 |
| 2011 | 34 | 45 |
| 2012 | 52 | 55 |
| 2013 | 43 | 32 |
| 2014 | 35 | 47 |
| 2015 | 30 | 65 |
| 2016 | 45 | 59 |
| 2017 | 49 | 46 |
| 2018 | 60 | 55 |
| 2019 | 54 | 60 |
| 2020 | 62 | 59 |
| 2021 | 50 | 30 |
| 2022 | 42 | 35 |
| 2023 | 37 | 45 |
| 2024 | 27 | 34 |
| 2025 | 32 | 21 |
| 2026 | 16 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01H 2219/044Edge lighting of layerIndexing code291
- H01H 2219/039Selective or different modes of illuminationIndexing code264
- H01H 2219/04AttachmentsIndexing code140
- H01H 2219/037Using organic materialsIndexing code85
- H01H 2219/038Ambient light dependentIndexing code64
- H01H 2219/052PhosphorescenceIndexing code64
- H01H 2219/046Above switch siteIndexing code56
- H01H 2219/048Constituting keyIndexing code42
Recent patents
- Key module and keyboard14 Jul 2026US 12,683,098 B2Wistron Corporation
- Control devices having independently suspended buttons for controlled actuation7 Jul 2026US 12,676,267 B2Lutron Technology Company LLC
- Lighting keyboard and backlight module thereof23 Jun 2026US 12,665,146 B2Darfon Electronics Corp.
- Lighting keyboard, backlight module and lighting board9 Jun 2026US 12,650,551 B2Darfon Electronics Corp.
- Modified tactile input attachment and device2 Jun 2026US 12,646,667 B2Tippy Type LLC
- Control devices having independently suspended buttons for controlled actuation8 Oct 2026US 2026/0311942 A1Lutron Technology Company LLC
- Key structure1 Oct 2026US 2026/0302103 A1Logitech Europe S. A.
- Device having integrated interface system17 Sep 2026US 2026/0277330 A1Apple Inc.
- Laser-cut button veneer for a control device having a backlit keypad16 Jul 2026US 2026/0204493 A1Lutron Technology Company LLC
- Light-emitting keyboard9 Jul 2026US 2026/0196418 A1Lite-On Electronics (Guangzhou) Limited
Most cited
By later US patents
- User interface for home automation system479US 6,140,987 AIntellinet, Inc. · 2000
- Methods for sealing electrochromic devices and devices manufactured thereby376US 5,233,461 ADonnelly Corporation · 1993
- Illuminated pushbutton keyboard327US 5,408,060 ANokia Mobile Phones Ltd. · 1995
- Keyboard having illuminated keys308US 6,217,183 B12001
- Illuminated keyboard281US 6,918,677 B22005