H03K 17/943
Using a plurality of optical emitters or detectors
Official title: {using a plurality of optical emitters or detectors, e.g. keyboard}
H03K17/943 (Using a plurality of optical emitters or detectors) appears on 103 US grants and 102 published applications in this corpus.
Search patents in H03K- Granted patents
- 103
- Published applications
- 102
- Assignees
- 76
- Inventors
- 285
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 3 | 0 |
| 2008 | 0 | 3 |
| 2009 | 2 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 3 |
| 2012 | 3 | 6 |
| 2013 | 3 | 1 |
| 2014 | 4 | 6 |
| 2015 | 3 | 5 |
| 2016 | 5 | 6 |
| 2017 | 3 | 6 |
| 2018 | 6 | 5 |
| 2019 | 3 | 8 |
| 2020 | 5 | 4 |
| 2021 | 8 | 10 |
| 2022 | 5 | 7 |
| 2023 | 7 | 9 |
| 2024 | 8 | 6 |
| 2025 | 6 | 6 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Push button switch26 May 2026US 12,640,319 B2OMRON Corporation
- Device having integrated interface system19 May 2026US 12,632,116 B2Apple Inc.
- Keyboard19 May 2026US 12,632,125 B2Clevetura LTD
- Touchless sensor systems and methods4 Nov 2025US 12,463,642 B2The Boeing Company
- Touchless elevator user interface30 Sep 2025US 12,428,262 B2Mitsubishi Electric Research Laboratories, Inc.
- Device having integrated interface system17 Sep 2026US 2026/0277330 A1Apple Inc.
- Dispositivo di illuminazione e sistema di illuminazione comprendente tale dispositivo di illuminazione28 May 2026US 2026/0146733 A1L. & S. Italia S.P.A.
- External button sensing device and method30 Apr 2026US 2026/0121638 A1National Tsing Hua University
- Hybrid analog key structure4 Dec 2025US 2025/0370551 A1Logitech Europe S. A.
- Computing Device Having a Button for Multiple Modes of Sensing21 Aug 2025US 2025/0261862 A1Google Inc.
Most cited
By later US patents
- Photo-sensor cell suitable for IC chip312US 5,055,668 ANissan Motor Co., Ltd. · 1991
- Increased sensitivity optical keyboard106US 4,884,073 A1989
- Sliding door sensor84US 5,142,152 AThe Stanley Works · 1992
- User-configurable control device79US 5,579,002 AArthur D. Little Enterprises, Inc. · 1996
- User-configurable control device78US 5,729,222 A1998