H04M 2203/50
Related to audio conference
Official title: related to audio conference
H04M2203/50 (Related to audio conference) appears on 996 US grants and 959 published applications in this corpus.
Search patents in H04M- Granted patents
- 996
- Published applications
- 959
- Assignees
- 411
- Inventors
- 1,958
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 7 | 0 |
| 1998 | 16 | 0 |
| 1999 | 13 | 0 |
| 2000 | 8 | 0 |
| 2001 | 11 | 2 |
| 2002 | 23 | 36 |
| 2003 | 19 | 45 |
| 2004 | 15 | 37 |
| 2005 | 23 | 47 |
| 2006 | 30 | 31 |
| 2007 | 28 | 58 |
| 2008 | 21 | 56 |
| 2009 | 26 | 51 |
| 2010 | 29 | 44 |
| 2011 | 44 | 37 |
| 2012 | 55 | 31 |
| 2013 | 75 | 64 |
| 2014 | 68 | 57 |
| 2015 | 60 | 50 |
| 2016 | 53 | 40 |
| 2017 | 54 | 43 |
| 2018 | 48 | 35 |
| 2019 | 45 | 26 |
| 2020 | 46 | 40 |
| 2021 | 40 | 34 |
| 2022 | 31 | 28 |
| 2023 | 30 | 34 |
| 2024 | 15 | 14 |
| 2025 | 18 | 14 |
| 2026 | 10 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04M 2203/5063Centrally initiated conference, i.e. conference server dials participantsIndexing code224
- H04M 2203/5009Adding a party to an existing conferenceIndexing code216
- H04M 2203/5054Meet-me conference, i.e. participants dial-inIndexing code192
- H04M 2203/5018Initiating a conference during a two-party conversation, i.e. three-party service or three-wayIndexing code172
- H04M 2203/5027Dropping a party from a conferenceIndexing code112
- H04M 2203/5072Multiple active speakersIndexing code104
- H04M 2203/5081Inform conference party of participantsIndexing code80
- H04M 2203/509Microphone arraysIndexing code65
Recent patents
- Systems and methods for sound-enhanced meeting platforms25 Aug 2026US 12,720,268 B2The Regents of the University of California
- Semi-global muting12 May 2026US 12,627,760 B2Ipc Systems, Inc.
- Audio processing method and apparatus21 Apr 2026US 12,609,123 B2Huawei Technologies Co., Ltd.
- Moving object conference system21 Apr 2026US 12,610,012 B2Honda Motor Co., Ltd.
- Conference calls14 Apr 2026US 12,603,957 B2Nokia Technologies Oy
- Semi-global muting20 Aug 2026US 2026/0246872 A1Ipc Systems, Inc.
- Information processing device, communication device, information processing method, and communication method30 Jul 2026US 2026/0222492 A1Sony Group Corporation
- Call control method, non-transitory computer-readable recording medium, and call control system9 Jul 2026US 2026/0197403 A1Jiffcy Inc.
- Automated assistants with conference capabilities2 Jul 2026US 2026/0189528 A1Google Inc.
- Apparatus and method for smart-call disconnection based on context-aware mechanism19 Mar 2026US 2026/0081999 A1Mitel Networks Corporation
Most cited
By later US patents
- Multimedia collaboration system with separate data network and A/V network controlled by information transmitting on the data network741US 5,617,539 AVicor Corporation · 1997
- Call control in video conferencing allowing acceptance and identification of participants in a new incoming call during an active teleconference595US 5,758,079 AVicor Corporation · 1998
- Multimedia collaboration system arrangement for routing compressed AV signal through a participant site without decompressing the AV signal566US 5,689,641 AVicor Corporation · 1997
- System, method and article of manufacture for a call back architecture in a hybrid network with support for internet telephony559US 6,731,625 B1MCI Communications Corporation · 2004
- Multimedia collaboration system504US 6,237,025 B1Collaboration Properties, Inc. · 2001