H04N 21/4122
Additional display device
Official title: {additional display device, e.g. video projector (digital output for controlling a plurality of local displays G06F3/1423)}
H04N21/4122 (Additional display device) appears on 2,417 US grants and 3,482 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,417
- Published applications
- 3,482
- Assignees
- 729
- Inventors
- 5,278
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 8 | 0 |
| 2001 | 12 | 6 |
| 2002 | 9 | 34 |
| 2003 | 6 | 44 |
| 2004 | 9 | 80 |
| 2005 | 18 | 110 |
| 2006 | 31 | 151 |
| 2007 | 34 | 132 |
| 2008 | 37 | 121 |
| 2009 | 50 | 139 |
| 2010 | 69 | 159 |
| 2011 | 84 | 217 |
| 2012 | 104 | 171 |
| 2013 | 162 | 204 |
| 2014 | 186 | 251 |
| 2015 | 178 | 273 |
| 2016 | 186 | 226 |
| 2017 | 194 | 200 |
| 2018 | 157 | 135 |
| 2019 | 177 | 129 |
| 2020 | 152 | 126 |
| 2021 | 91 | 123 |
| 2022 | 128 | 123 |
| 2023 | 102 | 104 |
| 2024 | 98 | 87 |
| 2025 | 84 | 72 |
| 2026 | 40 | 65 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device pairing22 Sep 2026US RE51,041 E1Samsung Electronics Co., Ltd.
- Display device for transmitting a UIBC trigger and operation method thereof25 Aug 2026US 12,717,534 B2LG Electronics Inc.
- Display device and method for displaying thereof for displaying additional data areas of an external display screen25 Aug 2026US 12,720,141 B2Samsung Electronics Co., Ltd.
- Electronic device and image mapping method18 Aug 2026US 12,710,687 B2Samsung Electronics Co., Ltd.
- Display device and system18 Aug 2026US 12,713,393 B2LG Electronics Inc.
- Display device and content sharing method for sharing content with external display device1 Oct 2026US 2026/0303896 A1LG Electronics Inc.
- Mobile terminal, image display device and user interface provision method using the same24 Sep 2026US 2026/0288292 A1InnoTV Labs, LLC
- Digital jukebox device with karaoke and/or photo booth features, and associated methods24 Sep 2026US 2026/0292283 A1TouchTunes Music Corporation
- Information processing apparatus and information processing method10 Sep 2026US 2026/0270504 A1Maxell, Ltd.
- Wireless device and wireless display system27 Aug 2026US 2026/0252300 A1LG Electronics Inc.
Most cited
By later US patents
- Method for effectively implementing a wireless television system643US 6,263,503 B12001
- Intelligent automated assistant for TV user interactions537US 9,338,493 B2Apple Inc. · 2016
- Method and configuring a user interface for controlling a controlled device based upon a device class497US 6,496,927 B1Amx LLC · 2002
- Home entertainment system combining complex processor capability with a high quality display451US 5,675,390 AGateway 2000, Inc. · 1997
- Media processing methods and arrangements316US 8,739,208 B2Digimarc Corporation · 2014