H04N 21/4147
Pvr [personal video recorder]
Official title: PVR [Personal Video Recorder] (H04N5/76 takes precedence {; arrangements for broadcast with accumulation-type receivers H04H20/40})
H04N21/4147 (Pvr [personal video recorder]) appears on 2,601 US grants and 3,507 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,601
- Published applications
- 3,507
- Assignees
- 587
- Inventors
- 4,317
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 8 | 0 |
| 1998 | 14 | 0 |
| 1999 | 15 | 0 |
| 2000 | 19 | 0 |
| 2001 | 24 | 36 |
| 2002 | 33 | 171 |
| 2003 | 27 | 206 |
| 2004 | 27 | 146 |
| 2005 | 37 | 199 |
| 2006 | 57 | 183 |
| 2007 | 69 | 233 |
| 2008 | 73 | 211 |
| 2009 | 89 | 197 |
| 2010 | 107 | 218 |
| 2011 | 112 | 154 |
| 2012 | 170 | 131 |
| 2013 | 195 | 185 |
| 2014 | 212 | 168 |
| 2015 | 203 | 164 |
| 2016 | 209 | 196 |
| 2017 | 178 | 177 |
| 2018 | 162 | 110 |
| 2019 | 115 | 74 |
| 2020 | 107 | 86 |
| 2021 | 86 | 75 |
| 2022 | 60 | 58 |
| 2023 | 62 | 34 |
| 2024 | 54 | 55 |
| 2025 | 41 | 27 |
| 2026 | 19 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Storage, video recording system, and method for controlling storage29 Sep 2026US 12,750,550 B2Panasonic Intellectual Property Management Co., Ltd.
- Adapting runtime and providing content during an activity22 Sep 2026US 12,744,060 B2Adeia Guides Inc.
- System and method for storing multimedia files using an archive file format25 Aug 2026US 12,720,148 B2Adeia Media Holdings LLC
- Systems and methods for intelligently managing storage space occupied by media assets25 Aug 2026US 12,720,150 B2Adeia Guides Inc.
- Systems and methods for using metadata to play media assets stored on a digital video recorder25 Aug 2026US 12,720,152 B2DISH Network L.L.C.
- Realtime wireless synchronization of live event audio stream with a video recording8 Oct 2026US 2026/0314022 A1Bygge Technologies Inc.
- Network video management computer system with bandwidth usage display17 Sep 2026US 2026/0281283 A1Dice Corporation
- Systems and methods for playing media assets stored on a digital video recorder17 Sep 2026US 2026/0281495 A1DISH Network L.L.C.
- Systems and methods for leveraging machine learning for improving and enhancing dvr services27 Aug 2026US 2026/0255011 A1Adeia Guides Inc.
- User control of replacement television advertisements inserted by a smart television6 Aug 2026US 2026/0230659 A1AlmondNet, Inc.
Most cited
By later US patents
- Multimedia time warping system1,079US 6,233,389 B1TiVo Inc. · 2001
- Time delayed digital video system using concurrent recording and playback639US 5,371,551 A1994
- Client-server electronic program guide563US 6,898,762 B2United Video Properties, Inc. · 2005
- Electronic programming system and method540US 6,163,316 ATexas Instruments Incorporated · 2000
- Digital video recorder compatible receiver with trick play image enhancement527US 5,377,051 AHitachi America, Ltd. · 1994