H04N 21/4223
Cameras
Official title: Cameras (H04N23/00 takes precedence)
H04N21/4223 (Cameras) appears on 4,200 US grants and 5,774 published applications in this corpus.
Search patents in H04N- Granted patents
- 4,200
- Published applications
- 5,774
- Assignees
- 1,392
- Inventors
- 8,785
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 8 | 0 |
| 2000 | 8 | 0 |
| 2001 | 14 | 7 |
| 2002 | 11 | 59 |
| 2003 | 16 | 62 |
| 2004 | 23 | 134 |
| 2005 | 29 | 138 |
| 2006 | 38 | 174 |
| 2007 | 45 | 173 |
| 2008 | 38 | 137 |
| 2009 | 62 | 160 |
| 2010 | 105 | 307 |
| 2011 | 130 | 245 |
| 2012 | 164 | 277 |
| 2013 | 220 | 319 |
| 2014 | 255 | 367 |
| 2015 | 281 | 359 |
| 2016 | 286 | 309 |
| 2017 | 300 | 336 |
| 2018 | 278 | 357 |
| 2019 | 282 | 302 |
| 2020 | 311 | 288 |
| 2021 | 268 | 252 |
| 2022 | 257 | 265 |
| 2023 | 231 | 253 |
| 2024 | 224 | 223 |
| 2025 | 206 | 190 |
| 2026 | 89 | 81 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Apparatus, systems, and methods for user presence detection for audience monitoring6 Oct 2026US 12,756,896 B2The Nielsen Company (US), LLC
- Device pairing22 Sep 2026US RE51,041 E1Samsung Electronics Co., Ltd.
- Adaptive transfer function for video encoding and decoding15 Sep 2026US 12,739,397 B2Apple Inc.
- System and method for controlling selective revealing object1 Sep 2026US 12,721,389 B2Hytto Pte. Ltd.
- Devices with enhanced audio25 Aug 2026US 12,717,543 B2Apple Inc.
- AI Smart Handsfree Television1 Oct 2026US 2026/0303904 A1
- Picture quality adjustment for connected video display24 Sep 2026US 2026/0292273 A1Roku, Inc.
- Digital jukebox device with karaoke and/or photo booth features, and associated methods24 Sep 2026US 2026/0292283 A1TouchTunes Music Corporation
- Transitioning Of Content24 Sep 2026US 2026/0292298 A1Google Inc.
- Network video management computer system with bandwidth usage display17 Sep 2026US 2026/0281283 A1Dice Corporation
Most cited
By later US patents
- Hand gesture machine control system1,113US 5,594,469 AMitsubishi Electric Information Technology Center America, Inc. · 1997
- Cellular telephone and electronic camera system with programmable transmission capability612US 6,122,526 AEastman Kodak Company · 2000
- Object customization and presentation system555US 7,859,551 B22010
- Using video image analysis to automatically transmit gestures over a network in a chat or instant messaging session506US 7,039,676 B1International Business Machines Corporation · 2006
- Emotional reaction sharing496US 10,573,048 B2Oath Inc. · 2020