H04Q 3/00
Selecting arrangements
Official title: Selecting arrangements (H04Q5/00 - H04Q11/00 take precedence)
H04Q3/00 (Selecting arrangements) appears on 8,736 US grants and 4,277 published applications in this corpus.
Search patents in H04Q- Granted patents
- 8,736
- Published applications
- 4,277
- Assignees
- 1,715
- Inventors
- 13,259
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 117 | 0 |
| 1977 | 92 | 0 |
| 1978 | 60 | 0 |
| 1979 | 36 | 0 |
| 1980 | 45 | 0 |
| 1981 | 42 | 0 |
| 1982 | 37 | 0 |
| 1983 | 29 | 0 |
| 1984 | 31 | 0 |
| 1985 | 28 | 0 |
| 1986 | 40 | 0 |
| 1987 | 46 | 0 |
| 1988 | 59 | 0 |
| 1989 | 76 | 0 |
| 1990 | 88 | 0 |
| 1991 | 89 | 0 |
| 1992 | 72 | 0 |
| 1993 | 96 | 0 |
| 1994 | 166 | 0 |
| 1995 | 234 | 0 |
| 1996 | 297 | 0 |
| 1997 | 239 | 0 |
| 1998 | 391 | 0 |
| 1999 | 490 | 0 |
| 2000 | 480 | 0 |
| 2001 | 477 | 166 |
| 2002 | 461 | 537 |
| 2003 | 424 | 457 |
| 2004 | 441 | 407 |
| 2005 | 333 | 426 |
| 2006 | 425 | 321 |
| 2007 | 335 | 330 |
| 2008 | 276 | 259 |
| 2009 | 242 | 185 |
| 2010 | 278 | 208 |
| 2011 | 257 | 140 |
| 2012 | 234 | 122 |
| 2013 | 236 | 112 |
| 2014 | 209 | 87 |
| 2015 | 138 | 84 |
| 2016 | 95 | 76 |
| 2017 | 91 | 56 |
| 2018 | 81 | 65 |
| 2019 | 85 | 60 |
| 2020 | 70 | 47 |
| 2021 | 40 | 29 |
| 2022 | 32 | 41 |
| 2023 | 36 | 25 |
| 2024 | 22 | 15 |
| 2025 | 24 | 12 |
| 2026 | 14 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04Q 3/0016Arrangements providing connection between exchanges5,595
- H04Q 3/64Distributing or queueing1,277
- H04Q 3/42Circuit arrangements for indirect selecting controlled by common circuits1,201
- H04Q 3/58Arrangements providing connection between main exchange and sub-exchange or satellite887
- H04Q 3/72Finding out and indicating number of calling subscriber850
- H04Q 3/70Identification of class of calling subscriber66
- H04Q 3/76Translation from the called subscriber's number to the outgoing or incoming control63
- H04Q 3/0004Selecting arrangements: using crossbar selectors in the switching stages42
All 14 subgroupsShow fewer
- H04Q 3/0008Selecting arrangements: using relay selectors in the switching stages33
- H04Q 3/04Circuit arrangements for receivers of routing digits19
- H04Q 3/02Circuit arrangements for selectors responsive to a permutation code3
- H04Q 3/32Circuit arrangements for second or subsequent stages of hunting switching3
- H04Q 3/78Temporary storage of information of calling or called subscriber1
- H04Q 3/18Circuit arrangements for first stage of hunting switching0
Recent patents
- 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.
- System and method for establishing calls25 Aug 2026US 12,720,238 B2Textnow, Inc.
- Private branch exchange high availability server18 Aug 2026US 12,712,966 B1Zoom Communications, Inc.
- System and method for provision of an advanced network function to a device11 Aug 2026US 12,707,003 B1Movius
- Call classification through analysis of dtmf events17 Sep 2026US 2026/0281227 A1Pindrop Security, Inc.
- Device and method with multi-stage electrical interconnection network3 Sep 2026US 2026/0261526 A1Samsung Electronics Co., Ltd.
- Computer-implemented systems and methods for evaluating contact center performance using simulated agent event and contact event data27 Aug 2026US 2026/0254897 A1Afiniti AI Limited
- Route Configuration Method and Apparatus, Device, Storage Medium, and Computer Program6 Aug 2026US 2026/0230429 A1Huawei Cloud Computing Technologies Co., Ltd.
- Multi-version communication system9 Apr 2026US 2026/0101129 A1G.S. Consulting & Research Correnet Ltd
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