H04M 7/009
In systems involving pbx or kts networks
Official title: {in systems involving PBX or KTS networks}
H04M7/009 (In systems involving pbx or kts networks) appears on 402 US grants and 310 published applications in this corpus.
Search patents in H04M- Granted patents
- 402
- Published applications
- 310
- Assignees
- 161
- Inventors
- 536
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 4 | 0 |
| 1999 | 8 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 3 |
| 2002 | 12 | 20 |
| 2003 | 14 | 25 |
| 2004 | 13 | 22 |
| 2005 | 13 | 18 |
| 2006 | 16 | 12 |
| 2007 | 16 | 21 |
| 2008 | 17 | 21 |
| 2009 | 14 | 23 |
| 2010 | 14 | 8 |
| 2011 | 12 | 15 |
| 2012 | 20 | 13 |
| 2013 | 21 | 18 |
| 2014 | 19 | 9 |
| 2015 | 19 | 10 |
| 2016 | 11 | 9 |
| 2017 | 13 | 12 |
| 2018 | 19 | 7 |
| 2019 | 17 | 11 |
| 2020 | 18 | 11 |
| 2021 | 8 | 3 |
| 2022 | 14 | 7 |
| 2023 | 11 | 5 |
| 2024 | 4 | 1 |
| 2025 | 6 | 6 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for emulating a shared line system in a multicell network15 Sep 2026US 12,739,325 B2VTech Telecommunications Limited
- Identifying and processing, for priority, calls in data communications server8 Sep 2026US 12,732,579 B18x8, Inc.
- Exchange, and telephone exchange method25 Aug 2026US 12,719,983 B2NEC Platforms, Ltd.
- Internet telephone system, private branch exchange device and customer service scheduling method25 Aug 2026US 12,719,987 B2Acer Incorporated
- Analysis of data metrics in server-based network2 Dec 2025US 12,489,851 B18x8, Inc.
- Hybrid Cloud PBX16 Oct 2025US 2025/0324000 A1
- Gateway apparatus, private branch exchange system, and private branch exchange method2 Oct 2025US 2025/0310437 A1NEC Platforms, Ltd.
- Cloud-based deployment of communication services11 Sep 2025US 2025/0286955 A1G.S. Consulting & Research Correnet Ltd
- Internet telephone system, private branch exchange device and customer service scheduling method24 Jul 2025US 2025/0240368 A1Acer Incorporated
- Systems and methods for emulating a shared line system in a multicell network19 Jun 2025US 2025/0203014 A1VTech Telecommunications Limited
Most cited
By later US patents
- System and method for providing data to a wireless device upon detection of activity of the device on a wireless network694US 6,317,594 B1Openwave Technologies Inc. · 2001
- Mobility extended telephone application programming interface and method of use447US 6,181,935 B2Software.com, Inc. · 2001
- Area wide centrex423US 5,247,571 ABell Atlantic Network Services, Inc. · 1993
- Method and tool for calculating impact of voice traffic on fast packet networks257US 6,532,235 B1Qwest Communication Int'l., Inc. · 2003
- Electronic audio communication system255US 4,371,752 AECS Telecommunications, Inc. · 1983