H03K 17/941
Using an optical detector
Official title: {using an optical detector (H03K17/968 takes precedence)}
H03K17/941 (Using an optical detector) appears on 564 US grants and 463 published applications in this corpus.
Search patents in H03K- Granted patents
- 564
- Published applications
- 463
- Assignees
- 322
- Inventors
- 1,167
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 5 | 0 |
| 1982 | 7 | 0 |
| 1983 | 6 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 14 | 0 |
| 1988 | 9 | 0 |
| 1989 | 10 | 0 |
| 1990 | 13 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 7 | 0 |
| 1994 | 6 | 0 |
| 1995 | 8 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 12 | 0 |
| 2001 | 3 | 0 |
| 2002 | 6 | 6 |
| 2003 | 8 | 7 |
| 2004 | 9 | 12 |
| 2005 | 6 | 19 |
| 2006 | 7 | 12 |
| 2007 | 10 | 7 |
| 2008 | 7 | 10 |
| 2009 | 7 | 6 |
| 2010 | 5 | 17 |
| 2011 | 6 | 19 |
| 2012 | 11 | 25 |
| 2013 | 19 | 21 |
| 2014 | 23 | 25 |
| 2015 | 21 | 28 |
| 2016 | 28 | 22 |
| 2017 | 21 | 21 |
| 2018 | 22 | 28 |
| 2019 | 24 | 27 |
| 2020 | 25 | 22 |
| 2021 | 25 | 23 |
| 2022 | 18 | 29 |
| 2023 | 23 | 36 |
| 2024 | 29 | 15 |
| 2025 | 14 | 16 |
| 2026 | 13 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Wearing detection techniques for wearable devices9 Jun 2026US 12,648,736 B2Oura Health Oy
- Push button switch2 Jun 2026US 12,646,665 B2OMRON Corporation
- Push button switch26 May 2026US 12,640,319 B2OMRON Corporation
- Contactless actionable button19 May 2026US 12,631,733 B2STMicroelectronics (Grenoble 2) SAS
- Device having integrated interface system19 May 2026US 12,632,116 B2Apple Inc.
- Switch device8 Oct 2026US 2026/0312584 A1Kabushiki Kaisha Tokai Rika Denki Seisakusho
- Device having integrated interface system17 Sep 2026US 2026/0277330 A1Apple Inc.
- Sensor and detection method20 Aug 2026US 2026/0243875 A1OMRON Corporation
- Wearing detection techniques for wearable devices30 Jul 2026US 2026/0215733 A1Oura Health Oy
- Dispositivo di illuminazione e sistema di illuminazione comprendente tale dispositivo di illuminazione28 May 2026US 2026/0146733 A1L. & S. Italia S.P.A.
Most cited
By later US patents
- Photo-sensor cell suitable for IC chip312US 5,055,668 ANissan Motor Co., Ltd. · 1991
- Electrically operated dispensing apparatus and disposable container useable therewith225US 4,722,372 ALouis Hoffman Associates Inc. · 1988
- Electro-optical scanning system with gyrating scan head151US 5,371,347 AGAP Technologies, Inc. · 1994
- Light beam scanning pen, scan module for the device and method of utilization133US 5,932,860 AGEO Labs, Inc. · 1999
- Non-contact switch for detecting the presence of operator on power machinery114US 5,397,890 A1995