H01H 13/81
Characterised by electrical connections to external devices
Official title: characterised by electrical connections to external devices
H01H13/81 (Characterised by electrical connections to external devices) appears on 51 US grants and 66 published applications in this corpus.
Search patents in H01H- Granted patents
- 51
- Published applications
- 66
- Assignees
- 40
- Inventors
- 159
- Latest grant
- 28 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 3 |
| 2009 | 0 | 2 |
| 2010 | 1 | 3 |
| 2011 | 2 | 3 |
| 2012 | 3 | 3 |
| 2013 | 1 | 5 |
| 2014 | 4 | 2 |
| 2015 | 2 | 3 |
| 2016 | 3 | 2 |
| 2017 | 1 | 1 |
| 2018 | 5 | 4 |
| 2019 | 4 | 4 |
| 2020 | 3 | 5 |
| 2021 | 4 | 1 |
| 2022 | 1 | 4 |
| 2023 | 5 | 3 |
| 2024 | 3 | 5 |
| 2025 | 4 | 9 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Headphone28 Apr 2026US 12,615,471 B2Cheng Uei Precision Industry Co., Ltd.
- Signal transmission between electronic device and keyboard using high/low pass filters2 Dec 2025US 12,487,684 B2Honor Device Co., Ltd.
- Operation device, keyboard device, and electronic apparatus14 Oct 2025US 12,443,291 B2Lenovo (Singapore) Pte. Ltd.
- Adjustable and changeable modular control panel23 Sep 2025US 12,426,183 B2Elgato Idisplay Limited
- Keyboard with backlit circuit board29 Jul 2025US 12,374,514 B2Darfon Electronics Corp.
- Keyboard and keyswitch structure thereof21 May 2026US 2026/0142099 A1Darfon Electronics Corp.
- Operation device, keyboard device, and electronic apparatus21 Aug 2025US 2025/0264944 A1Lenovo (Singapore) Pte. Ltd.
- Key circuit24 Apr 2025US 2025/0132110 A1Peratech Electronic Tech Suzhou Co Ltd
- Signal transmission method and related device17 Apr 2025US 2025/0123694 A1Honor Device Co., Ltd.
- Headphone17 Apr 2025US 2025/0126391 A1Cheng Uei Precision Industry Co., Ltd.
Most cited
By later US patents
- Accessory controller for electronic devices241US 9,064,653 B2Apple Inc. · 2015
- Modular keyboard for use in a computer system74US 5,865,546 ACompaq Computer Corporation · 1999
- Adapter assemblies for interconnecting surgical loading units and handle assemblies60US 9,949,737 B2Covidien LP · 2018
- Electric control device37US 8,106,325 B2Dav · 2012
- Accessory controller for electronic devices36US 8,314,354 B2Apple Inc. · 2012