H04M 3/42221
Conversation recording systems
Official title: {Conversation recording systems (at the subscriber's set H04M1/656)}
H04M3/42221 (Conversation recording systems) appears on 1,695 US grants and 1,626 published applications in this corpus.
Search patents in H04M- Granted patents
- 1,695
- Published applications
- 1,626
- Assignees
- 583
- Inventors
- 2,899
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 4 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 14 | 0 |
| 1997 | 10 | 0 |
| 1998 | 16 | 0 |
| 1999 | 20 | 0 |
| 2000 | 17 | 0 |
| 2001 | 23 | 13 |
| 2002 | 27 | 34 |
| 2003 | 12 | 31 |
| 2004 | 30 | 56 |
| 2005 | 22 | 56 |
| 2006 | 40 | 68 |
| 2007 | 17 | 61 |
| 2008 | 33 | 84 |
| 2009 | 32 | 60 |
| 2010 | 42 | 56 |
| 2011 | 40 | 52 |
| 2012 | 68 | 39 |
| 2013 | 80 | 63 |
| 2014 | 99 | 113 |
| 2015 | 107 | 101 |
| 2016 | 131 | 94 |
| 2017 | 124 | 114 |
| 2018 | 130 | 92 |
| 2019 | 126 | 76 |
| 2020 | 91 | 45 |
| 2021 | 62 | 64 |
| 2022 | 64 | 59 |
| 2023 | 72 | 61 |
| 2024 | 51 | 47 |
| 2025 | 52 | 48 |
| 2026 | 15 | 39 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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.
- Advanced machine learning methods for enhanced call transcript annotation and targeted analytics report generation15 Sep 2026US 12,737,566 B2Wells Fargo Bank, N. A.
- Active voice liveness detection system11 Aug 2026US 12,706,098 B2Pindrop Security, Inc.
- Artificial intelligence based setting of controls in a user interface7 Jul 2026US 12,676,931 B2Open Text Corporation
- Systems and methods for interaction analytics9 Jun 2026US 12,651,596 B2The Toronto-Dominion Bank
- Publish and subscribe call center architecture1 Oct 2026US 2026/0303701 A1Intrado Life & Safety, Inc.
- Multi-agent system for automated customer service with dynamic agent generation24 Sep 2026US 2026/0289151 A1Twilio Inc.
- Systems and methods of enhanced call identification24 Sep 2026US 2026/0292060 A1Radicom Research, Inc.
- Artificial intelligence based setting of controls in a user interface24 Sep 2026US 2026/0292064 A1Open Text Corporation
- Generation of communication receipt for a dynamic transcript of an interactive communication24 Sep 2026US 2026/0292068 A1SymmetriCall Inc.
Most cited
By later US patents
- Automated and interactive behavioral and medical guidance system969US 5,596,994 A1997
- Method for mediating social and behavioral processes in medicine and business through an interactive telecommunications guidance system896US 5,722,418 A1998
- 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
- Computer-based method and apparatus for controlling, monitoring, recording and reporting telephone access584US 7,106,843 B1T-Netix, Inc. · 2006