H04L 12/18
For broadcast or conference
Official title: for broadcast or conference {, e.g. multicast}
H04L12/18 (For broadcast or conference) appears on 17,657 US grants and 20,396 published applications in this corpus.
Search patents in H04L- Granted patents
- 17,657
- Published applications
- 20,396
- Assignees
- 3,680
- Inventors
- 30,725
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 8 | 0 |
| 1986 | 1 | 0 |
| 1987 | 4 | 0 |
| 1988 | 9 | 0 |
| 1989 | 12 | 0 |
| 1990 | 6 | 0 |
| 1991 | 12 | 0 |
| 1992 | 9 | 0 |
| 1993 | 17 | 0 |
| 1994 | 29 | 0 |
| 1995 | 35 | 0 |
| 1996 | 46 | 0 |
| 1997 | 59 | 0 |
| 1998 | 99 | 0 |
| 1999 | 112 | 0 |
| 2000 | 131 | 0 |
| 2001 | 112 | 61 |
| 2002 | 147 | 354 |
| 2003 | 165 | 427 |
| 2004 | 193 | 410 |
| 2005 | 185 | 589 |
| 2006 | 287 | 623 |
| 2007 | 257 | 718 |
| 2008 | 288 | 734 |
| 2009 | 421 | 770 |
| 2010 | 568 | 759 |
| 2011 | 621 | 696 |
| 2012 | 722 | 891 |
| 2013 | 814 | 946 |
| 2014 | 1024 | 1175 |
| 2015 | 1106 | 1387 |
| 2016 | 1174 | 1251 |
| 2017 | 1128 | 988 |
| 2018 | 936 | 918 |
| 2019 | 1110 | 931 |
| 2020 | 1048 | 932 |
| 2021 | 925 | 894 |
| 2022 | 896 | 980 |
| 2023 | 922 | 1011 |
| 2024 | 868 | 924 |
| 2025 | 763 | 608 |
| 2026 | 367 | 419 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04L 12/1813For computer conferences7,860
- H04L 12/189In combination with wireless systems2,980
- H04L 12/185With management of multicast group membership2,017
- H04L 12/1863Comprising mechanisms for improved reliability1,638
- H04L 12/1886With traffic restrictions for efficiency improvement1,180
- H04L 12/1859Adapted to provide push services1,061
- H04L 12/1895For short real-time information1,029
- H04L 12/1881With schedule organisation737
Recent patents
- System, method, and application for exchanging content in a social network environment6 Oct 2026US 12,755,256 B2Adeia Media Holdings LLC
- Virtual meeting scheduling and monitoring based on sustainability attributes6 Oct 2026US 12,756,588 B2Cisco Technology, Inc.
- Systems and methods for creation and application of interaction analytics6 Oct 2026US 12,756,589 B2Read AI, Inc.
- Integrated network testing for virtual conferencing6 Oct 2026US 12,756,645 B1Zoom Communications, Inc.
- Seamless continuation of communication sessions6 Oct 2026US 12,757,267 B2Apple Inc.
- Speech translation using latency based filler generation8 Oct 2026US 2026/0311681 A1Cisco Technology, Inc.
- Opportunistic content delivery using delta coding8 Oct 2026US 2026/0312676 A1ViaSat, Inc.
- Chunk based modular video processing8 Oct 2026US 2026/0312836 A1Clari Inc.
- Serial broadcast readout in a daisy chain network8 Oct 2026US 2026/0312837 A1ams-OSRAM International GmbH
- Multi-message transmission optimization8 Oct 2026US 2026/0312908 A1Mellanox Technologies, Ltd.
Most cited
By later US patents
- System for allowing all remote computers to perform annotation on an image and replicating the annotated image on the respective displays of other comuters2,385US 5,608,872 ANCR Corporation · 1997
- Instant sharing of documents on a remote server2,347US 6,654,032 B1WebEx Communications, Inc. · 2003
- Method and apparatus for determining behavioral profile of a computer user2,336US 5,848,396 AFreedom of Information, Inc. · 1998
- System for allowing user of any computer to draw image over that generated by the host computer and replicating the drawn image to other computers2,300US 5,649,104 ANCR Corporation · 1997
- Remote collaboration system including first program means translating user inputs into annotations and running on all computers while second program means runs on one computer2,250US 5,761,419 ANCR Corporation · 1998