H01H 2219/038
Ambient light dependent
Official title: ambient light dependent
H01H2219/038 (Ambient light dependent) appears on 64 US grants and 66 published applications in this corpus.
Search patents in H01H- Granted patents
- 64
- Published applications
- 66
- Assignees
- 43
- Inventors
- 121
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 1 |
| 2003 | 1 | 4 |
| 2004 | 2 | 2 |
| 2005 | 2 | 0 |
| 2006 | 3 | 1 |
| 2007 | 1 | 7 |
| 2008 | 0 | 1 |
| 2009 | 1 | 2 |
| 2010 | 1 | 4 |
| 2011 | 6 | 5 |
| 2012 | 5 | 4 |
| 2013 | 6 | 1 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 2 |
| 2017 | 2 | 1 |
| 2018 | 2 | 5 |
| 2019 | 5 | 4 |
| 2020 | 4 | 3 |
| 2021 | 2 | 3 |
| 2022 | 3 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 4 |
| 2025 | 4 | 2 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control device having an integral reflecting structure for a sensing circuit4 Nov 2025US 12,464,623 B2Lutron Technology Company LLC
- Photoluminescence keyboard glyph lighting16 Sep 2025US 12,416,399 B2Apple Inc.
- Control device having buttons with automatically adjustable backlighting29 Jul 2025US 12,376,206 B2Lutron Technology Company LLC
- Molded buttons6 May 2025US 12,293,882 B2Snap One, LLC
- Keypad having illuminated buttons24 Dec 2024US 12,176,159 B2Lutron Technology Company LLC
- Control device having an integral reflecting structure for a sensing circuit26 Feb 2026US 2026/0059628 A1Lutron Technology Company LLC
- Control device having buttons with automatically adjustable backlighting20 Nov 2025US 2025/0358911 A1Lutron Technology Company LLC
- Keypad Having Illuminated Buttons28 Aug 2025US 2025/0273413 A1Lutron Technology Company LLC
- Keypad Having Illuminated Buttons23 May 2024US 2024/0170235 A1Lutron Technology Company LLC
- Control device having an integral reflecting structure for a sensing circuit11 Apr 2024US 2024/0121872 A1Lutron Technology Company LLC
Most cited
By later US patents
- User interface for home automation system479US 6,140,987 AIntellinet, Inc. · 2000
- Automatic backlight for handheld devices173US 6,664,744 B2Mitsubishi Electric Research Laboratories, Inc. · 2003
- Illuminated light switch plate with LED and oscillator circuit123US 4,514,789 A1985
- Communication using bi-directional LEDs108US 7,072,587 B2Mitsubishi Electric Research Laboratories, Inc. · 2006
- Keyboard having a lighting system89US 6,987,466 B1Apple Computer, Inc. · 2006