H01H 21/025
Light-emitting indicators
Official title: {Light-emitting indicators}
H01H21/025 (Light-emitting indicators) appears on 56 US grants and 52 published applications in this corpus.
Search patents in H01H- Granted patents
- 56
- Published applications
- 52
- Assignees
- 45
- Inventors
- 110
- Latest grant
- 10 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 3 | 4 |
| 2006 | 4 | 4 |
| 2007 | 2 | 3 |
| 2008 | 1 | 4 |
| 2009 | 1 | 1 |
| 2010 | 1 | 2 |
| 2011 | 2 | 1 |
| 2012 | 2 | 4 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 4 | 1 |
| 2016 | 0 | 2 |
| 2017 | 2 | 2 |
| 2018 | 2 | 2 |
| 2019 | 3 | 4 |
| 2020 | 3 | 4 |
| 2021 | 2 | 2 |
| 2022 | 3 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 2 |
| 2025 | 0 | 0 |
| 2026 | 1 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Methods, systems, and apparatus for junction box assembly10 Feb 2026US 12,548,987 B2Snap One, LLC
- Electrical switch with identification features6 Sep 2022US 11,437,208 B2
- Switch circuit, switch device, and system21 Jun 2022US 11,366,164 B2Alps Alpine Co., Ltd.
- Cantilevered operating button for an electronic vapor provision system15 Feb 2022US 11,246,339 B2Nicoventures Holdings Limited
- Electronic park brake interface module, park brake controller and system2 Nov 2021US 11,161,484 B2Bendix Commercial Vehicle Systems LLC
- Methods, systems, and apparatus for junction box assembly21 May 2026US 2026/0142445 A1Snap One, LLC
- Methods, systems, and apparatus for junction box assembly12 Mar 2026US 2026/0074493 A1Snap One, LLC
- Methods, systems, and apparatus for junction box assembly12 Mar 2026US 2026/0074494 A1Snap One, LLC
- Methods, systems, and apparatus for junction box assembly12 Mar 2026US 2026/0074495 A1Snap One, LLC
- Methods, systems, and apparatus for junction box assembly12 Mar 2026US 2026/0074496 A1Snap One, LLC
Most cited
By later US patents
- Illumination push switch unit50US 7,265,307 B2Alps Electric Co., Ltd. · 2007
- Fusible switching disconnect modules and devices46US 7,561,017 B2Cooper Technologies Company · 2009
- Rocker paddle switch with semi-rigid cam driver42US 7,034,236 B2Leviton Manufacturing Co., Inc. · 2006
- Illuminated rotary switch assembly41US 5,359,165 AEaton Corporation · 1994
- Switch-operated member with status light pipe incorporated therein36US 6,129,440 AIomega Corporation · 2000