H04Q 2213/1322
Pbx
H04Q2213/1322 (Pbx) appears on 925 US grants and 425 published applications in this corpus.
Search patents in H04Q- Granted patents
- 925
- Published applications
- 425
- Assignees
- 289
- Inventors
- 1,241
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 6 | 0 |
| 1989 | 5 | 0 |
| 1990 | 6 | 0 |
| 1991 | 8 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 10 | 0 |
| 1995 | 15 | 0 |
| 1996 | 26 | 0 |
| 1997 | 43 | 0 |
| 1998 | 61 | 0 |
| 1999 | 87 | 0 |
| 2000 | 59 | 0 |
| 2001 | 75 | 34 |
| 2002 | 75 | 73 |
| 2003 | 59 | 52 |
| 2004 | 52 | 35 |
| 2005 | 27 | 38 |
| 2006 | 31 | 25 |
| 2007 | 32 | 34 |
| 2008 | 25 | 25 |
| 2009 | 18 | 5 |
| 2010 | 19 | 8 |
| 2011 | 27 | 13 |
| 2012 | 20 | 7 |
| 2013 | 22 | 14 |
| 2014 | 16 | 5 |
| 2015 | 12 | 9 |
| 2016 | 8 | 5 |
| 2017 | 12 | 7 |
| 2018 | 8 | 10 |
| 2019 | 9 | 6 |
| 2020 | 4 | 5 |
| 2021 | 6 | 3 |
| 2022 | 4 | 3 |
| 2023 | 5 | 4 |
| 2024 | 6 | 2 |
| 2025 | 3 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Exchange, and telephone exchange method25 Aug 2026US 12,719,983 B2NEC Platforms, Ltd.
- Private branch exchange high availability server18 Aug 2026US 12,712,966 B1Zoom Communications, Inc.
- Producing routing information for voice over IP communications4 Aug 2026US 12,701,077 B2VolP-Pal.com, Inc.
- Calling line/name identification of enterprise subscribers in mobile calls23 Sep 2025US 12,425,814 B2Tango Networks, Inc.
- Determining a time to permit a communications session to be conducted19 Aug 2025US 12,395,425 B2VolP-Pal.com, Inc.
- Multi-version communication system9 Apr 2026US 2026/0101129 A1G.S. Consulting & Research Correnet Ltd
- System and Method for Dynamically Routing Call Data Between Client Devices and Public Branch Exchange Systems5 Feb 2026US 2026/0039980 A1Zebra Technologies Corporation
- Determining a Time to Permit a Communications Session to be Conducted4 Dec 2025US 2025/0373732 A1Voip-Pal.Com, Inc.
- Exchange, and telephone exchange method4 Jul 2024US 2024/0223703 A1NEC Platforms, Ltd.
- Methods of duplex transfer of voice streams between mobile subscribers and clients of im/voip with the corresponding implementation of pbx and of the voip-cell gateway based on smartphones13 Jun 2024US 2024/0195917 A13Hand LLC
Most cited
By later US patents
- IP-flow classification in a wireless point to multi-point (PTMP) transmission system910US 6,452,915 B1Malibu Networks, Inc. · 2002
- Automatic call distribution based on matching required skills with agents skills797US 5,206,903 AAT&T Bell Laboratories · 1993
- 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
- Application-aware, quality of service (QoS) sensitive, media access control (MAC) layer567US 6,640,248 B1Malibu Networks, Inc. · 2003