H01H 13/023
Light-emitting indicators
Official title: {Light-emitting indicators (for multi-layer switches H01H13/83)}
H01H13/023 (Light-emitting indicators) appears on 710 US grants and 650 published applications in this corpus.
Search patents in H01H- Granted patents
- 710
- Published applications
- 650
- Assignees
- 383
- Inventors
- 1,388
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 8 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 8 | 0 |
| 1982 | 10 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 9 | 0 |
| 1988 | 11 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 5 | 0 |
| 1998 | 7 | 0 |
| 1999 | 11 | 0 |
| 2000 | 5 | 0 |
| 2001 | 8 | 0 |
| 2002 | 6 | 5 |
| 2003 | 9 | 4 |
| 2004 | 4 | 8 |
| 2005 | 9 | 11 |
| 2006 | 7 | 14 |
| 2007 | 9 | 17 |
| 2008 | 17 | 14 |
| 2009 | 11 | 20 |
| 2010 | 9 | 12 |
| 2011 | 8 | 22 |
| 2012 | 22 | 16 |
| 2013 | 14 | 22 |
| 2014 | 17 | 23 |
| 2015 | 18 | 40 |
| 2016 | 27 | 37 |
| 2017 | 34 | 38 |
| 2018 | 35 | 48 |
| 2019 | 55 | 51 |
| 2020 | 39 | 35 |
| 2021 | 23 | 20 |
| 2022 | 30 | 35 |
| 2023 | 30 | 38 |
| 2024 | 32 | 37 |
| 2025 | 36 | 40 |
| 2026 | 27 | 43 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Key structure6 Oct 2026US 12,755,908 B2Acer Incorporated
- Keyboard module6 Oct 2026US 12,755,909 B2Lite-On Technology Corporation
- Light emitting device and switch device22 Sep 2026US 12,744,168 B2Valeo Japan Co., Ltd.
- Backlight module and lighting keyboard22 Sep 2026US 12,744,169 B2Darfon Electronics Corp.
- Display device and presentation device equipped with same15 Sep 2026US 12,737,084 B2OMRON Corporation
- Button design, gaming machine, and method for gaming machines1 Oct 2026US 2026/0301503 A1Everi Games, Inc.
- Modular USB Input Device with Programmable Actions and LED Feedback1 Oct 2026US 2026/0302097 A1Cryofox LLC
- Keycap lifting mechanism and long rectangular keyswitch structure1 Oct 2026US 2026/0302099 A1Darfon Electronic Corp.
- Button design, gaming machine, and method for gaming machines24 Sep 2026US 2026/0290111 A1Everi Games, Inc.
- Balance Frame Trigger Photoelectric Conduction Mechanism Applied to Key Switch3 Sep 2026US 2026/0260826 A1Dongguan City Kaihua Electronics Co., Ltd
Most cited
By later US patents
- Wall-mountable switch & dimmer224US 5,637,930 ALutron Electronics Co., Inc. · 1997
- Electrical wiring device with high current USB charging capabilities99US 8,758,031 B2Pass & Seymour, Inc. · 2014
- Control and/or indicator unit88US 5,534,840 ASchneider Electric SA · 1996
- Sliding dimmer switch86US 4,947,054 ALutron Electronics Co., Inc. · 1990
- Control switch85US 4,880,950 ALightolier Incorporated · 1989