H04M 3/51
Centralised call answering arrangements requiring operator intervention
Official title: Centralised call answering arrangements requiring operator intervention {, e.g. call or contact centers for telemarketing}
H04M3/51 (Centralised call answering arrangements requiring operator intervention) appears on 9,534 US grants and 8,363 published applications in this corpus.
Search patents in H04M- Granted patents
- 9,534
- Published applications
- 8,363
- Assignees
- 1,821
- Inventors
- 12,544
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 8 | 0 |
| 1986 | 10 | 0 |
| 1987 | 9 | 0 |
| 1988 | 13 | 0 |
| 1989 | 21 | 0 |
| 1990 | 28 | 0 |
| 1991 | 29 | 0 |
| 1992 | 25 | 0 |
| 1993 | 38 | 0 |
| 1994 | 46 | 0 |
| 1995 | 52 | 0 |
| 1996 | 80 | 0 |
| 1997 | 50 | 0 |
| 1998 | 87 | 0 |
| 1999 | 141 | 0 |
| 2000 | 120 | 0 |
| 2001 | 149 | 64 |
| 2002 | 171 | 195 |
| 2003 | 160 | 224 |
| 2004 | 200 | 205 |
| 2005 | 150 | 281 |
| 2006 | 184 | 269 |
| 2007 | 145 | 264 |
| 2008 | 129 | 278 |
| 2009 | 125 | 283 |
| 2010 | 195 | 246 |
| 2011 | 225 | 202 |
| 2012 | 358 | 258 |
| 2013 | 419 | 341 |
| 2014 | 534 | 476 |
| 2015 | 515 | 462 |
| 2016 | 501 | 455 |
| 2017 | 560 | 387 |
| 2018 | 536 | 388 |
| 2019 | 593 | 379 |
| 2020 | 553 | 427 |
| 2021 | 479 | 568 |
| 2022 | 468 | 410 |
| 2023 | 505 | 429 |
| 2024 | 379 | 328 |
| 2025 | 350 | 304 |
| 2026 | 155 | 240 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H04M 3/523With call distribution or queueing3,803
- H04M 3/5183Call or contact centers with computer-telephony arrangements3,209
- H04M 3/5175Call or contact centers supervision arrangements2,272
- H04M 3/5166In combination with interactive voice response systems or voice portals1,662
- H04M 3/5116For emergency applications1,077
- H04M 3/5158In combination with automated outdialling systems867
- H04M 3/5141Details of processing calls and other types of contacts in an unified438
- H04M 3/5133Operator terminal details405
Recent patents
- Method/system to convert text-to-voice / voice-to-text in service of emergency communications6 Oct 2026US 12,756,780 B2Intrado Life & Safety, Inc.
- Adapting AI voice interactions based on caller voice characteristics6 Oct 2026US 12,756,781 B1Rapidsos, Inc.
- System and method for detection and implementation of litigation-hold and release for interactions recordings within a contact center29 Sep 2026US 12,750,445 B2Nice Ltd.
- Systems and methods for automated contact center management based on analysis of agent state29 Sep 2026US 12,750,447 B2RingCentral, Inc.
- Voice AI container22 Sep 2026US 12,743,639 B2Bank of America Corporation
- Computer-implemented method for connecting a user to a mobile telephone-based language interpretation session8 Oct 2026US 2026/0310909 A1
- System and Method for Identity-Weighted Access Token Generation and Capability-Aware Delivery8 Oct 2026US 2026/0313051 A1Taptext LLC
- System, method, apparatus, and computer program product for providing mobile device support services8 Oct 2026US 2026/0313364 A1Assurant, Inc.
- System and Methods for Using Enhanced QR Codes in a Call to Action1 Oct 2026US 2026/0300918 A1Taptext LLC
- Publish and subscribe call center architecture1 Oct 2026US 2026/0303701 A1Intrado Life & Safety, Inc.
Most cited
By later US patents
- System and method for smart scripting call centers and configuration thereof2,196US 6,826,745 B2Siebel Systems, Inc. · 2004
- System and method for generating a dynamic interface via a communications network2,178US 6,850,949 B2Right Now Technologies, Inc. · 2005
- Computer telephony integration hotelling method and system2,172US 6,577,726 B1Siebel Systems, Inc. · 2003
- Providing collaborative installation management in a network-based supply chain environment1,805US 6,606,744 B1Accenture LLP · 2003
- Telephony control system with intelligent call routing1,000US 7,023,979 B12006