H03K 17/968
Using opto-electronic devices
Official title: using opto-electronic devices
H03K17/968 (Using opto-electronic devices) appears on 293 US grants and 219 published applications in this corpus.
Search patents in H03K- Granted patents
- 293
- Published applications
- 219
- Assignees
- 204
- Inventors
- 562
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 13 | 0 |
| 1982 | 2 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 7 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 8 | 0 |
| 1990 | 4 | 0 |
| 1991 | 8 | 0 |
| 1992 | 1 | 0 |
| 1993 | 8 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 8 | 0 |
| 2000 | 5 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 2 |
| 2003 | 1 | 6 |
| 2004 | 9 | 5 |
| 2005 | 3 | 5 |
| 2006 | 3 | 12 |
| 2007 | 5 | 2 |
| 2008 | 3 | 3 |
| 2009 | 2 | 5 |
| 2010 | 4 | 7 |
| 2011 | 3 | 8 |
| 2012 | 3 | 3 |
| 2013 | 4 | 6 |
| 2014 | 12 | 9 |
| 2015 | 5 | 7 |
| 2016 | 4 | 8 |
| 2017 | 13 | 24 |
| 2018 | 9 | 13 |
| 2019 | 12 | 18 |
| 2020 | 17 | 14 |
| 2021 | 13 | 14 |
| 2022 | 6 | 11 |
| 2023 | 12 | 12 |
| 2024 | 15 | 11 |
| 2025 | 9 | 10 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Button mechanism and wearable device including the same25 Aug 2026US 12,717,284 B2Goertek Inc.
- IR timing calibration for a key switch7 Jul 2026US 12,676,612 B2Logitech Europe S. A.
- Non-contact direction selector mechanism24 Mar 2026US 12,587,195 B2Snap-on Incorporated
- Sensing device2 Dec 2025US 12,488,951 B2Weinert Industries AG
- Hybrid analog key structure16 Sep 2025US 12,418,289 B1Logitech Europe S. A.
- Collision-sensitive housing unit, x-ray device, and method of collision detection30 Jul 2026US 2026/0215745 A1
- Photoelectric Microswitch16 Jul 2026US 2026/0205118 A1Dongguan City Kaihua Electronics Co., Ltd
- Environmentally isolated keypad assembly with tactile feedback16 Apr 2026US 2026/0104761 A1Ametek, Inc.
- Keyswitch substrate with sensor system11 Dec 2025US 2025/0379011 A1Logitech Europe S. A.
- Hybrid analog key structure4 Dec 2025US 2025/0370551 A1Logitech Europe S. A.
Most cited
By later US patents
- Touch position sensitive surface279US 4,484,179 AAT&T Bell Laboratories · 1984
- Lighted electronic keyboard241US 5,266,949 ANokia Mobile Phones Ltd. · 1993
- Touch position sensitive surface173US 4,346,376 ABell Telephone Laboratories, Incorporated · 1982
- Optically activated keyboard for digital system having character back lighting157US 5,034,602 ATexas Instruments Incorporated · 1991
- Optical keyboard with common light transmission members143US 4,417,824 AInternational Business Machines Corporation · 1983