H03K 17/9638
Using a light guide
Official title: {using a light guide}
H03K17/9638 (Using a light guide) appears on 40 US grants and 46 published applications in this corpus.
Search patents in H03K- Granted patents
- 40
- Published applications
- 46
- Assignees
- 43
- Inventors
- 103
- Latest grant
- 19 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 0 | 2 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 0 |
| 2007 | 2 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 2 | 1 |
| 2012 | 0 | 1 |
| 2013 | 3 | 5 |
| 2014 | 2 | 1 |
| 2015 | 1 | 0 |
| 2016 | 0 | 2 |
| 2017 | 0 | 5 |
| 2018 | 4 | 1 |
| 2019 | 5 | 3 |
| 2020 | 2 | 2 |
| 2021 | 0 | 3 |
| 2022 | 2 | 2 |
| 2023 | 2 | 2 |
| 2024 | 3 | 1 |
| 2025 | 1 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Touch input device19 Aug 2025US 12,395,172 B2Darfon Electronics Corp.
- Detector system3 Dec 2024US 12,159,008 B2Carl Zeiss Jena GmbH
- Display device, in particular for a vehicle1 Oct 2024US 12,103,387 B2BHTC GmbH
- Detector system21 May 2024US 11,989,376 B2Carl Zeiss Jena GmbH
- Luminous keyboard and optical module thereof26 Dec 2023US 11,852,861 B2Darfon Electronics Corp.
- Switch device8 Oct 2026US 2026/0312584 A1Kabushiki Kaisha Tokai Rika Denki Seisakusho
- Touch input device19 Dec 2024US 2024/0421818 A1Darfon Electronics Corp.
- Detector system21 Sep 2023US 2023/0297192 A1Carl Zeiss Jena GmbH
- Detector system21 Sep 2023US 2023/0297193 A1Carl Zeiss Jena GmbH
- Luminous keyboard and optical module thereof4 Aug 2022US 2022/0244445 A1Darfon Electronics Corp.
Most cited
By later US patents
- Touch position sensitive surface279US 4,484,179 AAT&T Bell Laboratories · 1984
- Data input device79US 7,242,388 B2VKB Inc. · 2007
- Electromagnetic radiation circuit element33US 4,814,600 A1989
- Single plane optical membrane switch and keyboard20US 4,480,182 ABurroughs Corporation · 1984
- Input device18US 10,483,969 B2Panasonic Intellectual Property Management Co., Ltd. · 2019