H04Q 3/0016
Arrangements providing connection between exchanges
Official title: {Arrangements providing connection between exchanges}
H04Q3/0016 (Arrangements providing connection between exchanges) appears on 5,595 US grants and 3,147 published applications in this corpus.
Search patents in H04Q- Granted patents
- 5,595
- Published applications
- 3,147
- Assignees
- 1,084
- Inventors
- 8,654
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 0 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 2 | 0 |
| 1988 | 16 | 0 |
| 1989 | 16 | 0 |
| 1990 | 25 | 0 |
| 1991 | 31 | 0 |
| 1992 | 34 | 0 |
| 1993 | 48 | 0 |
| 1994 | 88 | 0 |
| 1995 | 116 | 0 |
| 1996 | 196 | 0 |
| 1997 | 163 | 0 |
| 1998 | 261 | 0 |
| 1999 | 324 | 0 |
| 2000 | 325 | 0 |
| 2001 | 331 | 115 |
| 2002 | 333 | 425 |
| 2003 | 302 | 335 |
| 2004 | 326 | 317 |
| 2005 | 254 | 343 |
| 2006 | 334 | 254 |
| 2007 | 260 | 255 |
| 2008 | 214 | 195 |
| 2009 | 196 | 133 |
| 2010 | 221 | 161 |
| 2011 | 196 | 109 |
| 2012 | 180 | 87 |
| 2013 | 176 | 74 |
| 2014 | 149 | 56 |
| 2015 | 92 | 48 |
| 2016 | 66 | 47 |
| 2017 | 45 | 28 |
| 2018 | 39 | 33 |
| 2019 | 48 | 27 |
| 2020 | 43 | 37 |
| 2021 | 29 | 15 |
| 2022 | 18 | 21 |
| 2023 | 21 | 13 |
| 2024 | 13 | 8 |
| 2025 | 15 | 9 |
| 2026 | 6 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Exchange, and telephone exchange method25 Aug 2026US 12,719,983 B2NEC Platforms, Ltd.
- System and method for establishing calls25 Aug 2026US 12,720,238 B2Textnow, Inc.
- System and method for provision of an advanced network function to a device11 Aug 2026US 12,707,003 B1Movius
- Techniques for call authentication11 Aug 2026US 12,707,270 B2Capital One Services, LLC
- Systems and methods for communications node upgrade and selection12 May 2026US 12,627,570 B2Level 3 Communications, LLC
- Multi-version communication system9 Apr 2026US 2026/0101129 A1G.S. Consulting & Research Correnet Ltd
- Apparatus and method for providing telecommunication routing data26 Feb 2026US 2026/0057006 A1NetNumber, Inc.
- Consolidation of existing signal transfer points in a telecommunication network18 Sep 2025US 2025/0293924 A1Level 3 Communications, LLC
- Cloud-based deployment of communication services11 Sep 2025US 2025/0286955 A1G.S. Consulting & Research Correnet Ltd
- System and method for establishing calls4 Sep 2025US 2025/0280214 A1Textnow, Inc.
Most cited
By later US patents
- Personal communications internetworking1,899US 5,742,905 ABell Communications Research, Inc. · 1998
- Providing collaborative installation management in a network-based supply chain environment1,805US 6,606,744 B1Accenture LLP · 2003
- Unified messaging system and method1,307US 5,608,786 AAlphanet Telecom Inc. · 1997
- System, method and article of manufacture for communications utilizing calling, plans in a hybrid network1,175US 5,867,495 AMCI Communications Corporations · 1999
- Intelligent network1,077US 6,363,411 B1MCI WorldCom, Inc. · 2002