H04N 21/4335
Housekeeping operations
Official title: Housekeeping operations, e.g. prioritizing content for deletion because of storage space restrictions {(storage management, e.g. defragmentation G06F3/0604; unloading stored programs G06F9/445; storage management in file systems G06F16/10; buffering arrangements in a network node or in an end terminal in packet networks H04L49/90)}
H04N21/4335 (Housekeeping operations) appears on 1,018 US grants and 1,358 published applications in this corpus.
Search patents in H04N- Granted patents
- 1,018
- Published applications
- 1,358
- Assignees
- 369
- Inventors
- 1,795
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 5 | 0 |
| 2000 | 3 | 0 |
| 2001 | 7 | 8 |
| 2002 | 4 | 47 |
| 2003 | 9 | 60 |
| 2004 | 12 | 52 |
| 2005 | 19 | 57 |
| 2006 | 19 | 55 |
| 2007 | 17 | 71 |
| 2008 | 22 | 80 |
| 2009 | 34 | 75 |
| 2010 | 47 | 73 |
| 2011 | 43 | 42 |
| 2012 | 57 | 47 |
| 2013 | 59 | 75 |
| 2014 | 81 | 130 |
| 2015 | 103 | 85 |
| 2016 | 81 | 91 |
| 2017 | 73 | 60 |
| 2018 | 67 | 44 |
| 2019 | 58 | 46 |
| 2020 | 37 | 38 |
| 2021 | 41 | 37 |
| 2022 | 26 | 26 |
| 2023 | 26 | 20 |
| 2024 | 24 | 15 |
| 2025 | 22 | 14 |
| 2026 | 11 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for selectively storing specific versions of media assets29 Sep 2026US 12,750,551 B2Adeia Guides Inc.
- Storage soft-recycling in video recording system25 Aug 2026US 12,720,016 B2Honeywell International Inc.
- Systems and methods for intelligently managing storage space occupied by media assets25 Aug 2026US 12,720,150 B2Adeia Guides Inc.
- Systems and methods for processing overlapping content11 Aug 2026US 12,707,116 B2Adeia Guides Inc.
- Methods and systems for alerting users regarding availability of unconsumed content4 Aug 2026US 12,699,933 B2Adeia Guides Inc.
- Systems and techniques for media processing to remove private information10 Sep 2026US 2026/0270502 A1Nagravision Sarl
- Systems and method for providing video on demand in an intelligent television6 Aug 2026US 2026/0227864 A1Multimedia Technologies Pte, Ltd
- Storage soft-recycling in video recording system30 Jul 2026US 2026/0222521 A1Honeywell International Inc.
- Methods and systems for content storage2 Jul 2026US 2026/0189736 A1Comcast Cable Communications, LLC
- Communication apparatus, control method, and storage medium2 Apr 2026US 2026/0095451 A1Canon Kabushiki Kaisha
Most cited
By later US patents
- Client server based interactive television program guide system with remote server recording995US 7,761,892 B2United Video Properties, Inc. · 2010
- Method and apparatus for transmitting and receiving television program information842US 5,038,211 AThe SuperGuide Corporation · 1991
- Broadcast interactive multimedia system663US 5,617,565 AHitachi America, Ltd. · 1997
- Method and apparatus for progressively deleting media objects from storage439US 7,751,628 B12010
- Method and device for recording and reading on a large-capacity medium319US 6,091,883 AThomson Multimedia, S. A. · 2000