H04N 21/44209
Monitoring of downstream path of the transmission network originating from a server
Official title: {Monitoring of downstream path of the transmission network originating from a server, e.g. bandwidth variations of a wireless network (arrangements for maintenance or administration in data switching networks involving bandwidth and capacity management H04L41/0896)}
H04N21/44209 (Monitoring of downstream path of the transmission network originating from a server) appears on 2,045 US grants and 2,502 published applications in this corpus.
Search patents in H04N- Granted patents
- 2,045
- Published applications
- 2,502
- Assignees
- 681
- Inventors
- 4,001
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 3 | 0 |
| 1997 | 6 | 0 |
| 1998 | 12 | 0 |
| 1999 | 13 | 0 |
| 2000 | 7 | 0 |
| 2001 | 14 | 7 |
| 2002 | 10 | 60 |
| 2003 | 20 | 57 |
| 2004 | 19 | 55 |
| 2005 | 16 | 85 |
| 2006 | 30 | 88 |
| 2007 | 30 | 82 |
| 2008 | 43 | 87 |
| 2009 | 48 | 117 |
| 2010 | 67 | 115 |
| 2011 | 57 | 93 |
| 2012 | 76 | 88 |
| 2013 | 101 | 138 |
| 2014 | 142 | 147 |
| 2015 | 127 | 151 |
| 2016 | 116 | 125 |
| 2017 | 139 | 130 |
| 2018 | 125 | 106 |
| 2019 | 112 | 111 |
| 2020 | 134 | 113 |
| 2021 | 124 | 124 |
| 2022 | 100 | 114 |
| 2023 | 120 | 112 |
| 2024 | 96 | 86 |
| 2025 | 91 | 69 |
| 2026 | 42 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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Most cited
By later US patents
- System and method for optimized storage and retrieval of data on a distributed computer network462US 6,003,030 AIntervu, Inc. · 1999
- User controlled multi-device media-on-demand system439US 7,103,906 B1International Business Machines Corporation · 2006
- System and method for optimized storage and retrieval of data on a distributed computer network339US 6,665,706 B2Akamai Technologies, Inc. · 2003
- System and method for optimized storage and retrieval of data on a distributed computer network315US 6,502,125 B1Akamai Technologies, Inc. · 2002
- Device, system and method of real-time multimedia streaming299US 5,768,527 AMotorola, Inc. · 1998