H04M 1/2749
Automatic dialling or redialling systems
Official title: Automatic dialling or redialling systems, e.g. on off-hook or redial on busy
H04M1/2749 (Automatic dialling or redialling systems) appears on 218 US grants and 156 published applications in this corpus.
Search patents in H04M- Granted patents
- 218
- Published applications
- 156
- Assignees
- 133
- Inventors
- 391
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 4 | 0 |
| 1999 | 12 | 0 |
| 2000 | 7 | 0 |
| 2001 | 10 | 4 |
| 2002 | 7 | 8 |
| 2003 | 5 | 10 |
| 2004 | 8 | 16 |
| 2005 | 9 | 8 |
| 2006 | 14 | 14 |
| 2007 | 7 | 13 |
| 2008 | 10 | 8 |
| 2009 | 5 | 9 |
| 2010 | 10 | 12 |
| 2011 | 12 | 4 |
| 2012 | 5 | 5 |
| 2013 | 13 | 6 |
| 2014 | 7 | 5 |
| 2015 | 7 | 10 |
| 2016 | 8 | 6 |
| 2017 | 10 | 5 |
| 2018 | 4 | 3 |
| 2019 | 7 | 3 |
| 2020 | 5 | 3 |
| 2021 | 2 | 0 |
| 2022 | 2 | 2 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Distributed call conflict processing method and system, electronic device, and storage medium19 May 2026US 12,634,386 B2Honor Device Co., Ltd.
- Interactive client notifications10 Mar 2026US 12,574,445 B2Bank of America Corporation
- Apparatus, methods, or software for data mining user information by providing services over the internet for connecting people16 Aug 2022US RE49,176 E1Flexiworld Technologies, Inc.
- Short range wireless location/motion sensing devices and reporting methods11 Jan 2022US 11,223,715 B2Wearsafe Labs LLC
- Multiple party call acknowledgement23 Mar 2021US 10,958,785 B2International Business Machines Corporation
- Interactive client notifications7 Aug 2025US 2025/0254225 A1Bank of America Corporation
- Distributed Call Conflict Processing Method and System, Electronic Device, and Storage Medium26 Sep 2024US 2024/0323268 A1Honor Device Co., Ltd.
- Short range wireless location/motion sensing devices and reporting methods28 Apr 2022US 2022/0131965 A1Wearsafe Labs LLC
- Method for detecting the completion of a telephone call initiated from a web browser of a mobile communication device17 Feb 2022US 2022/0053077 A1Gni Media
- System, apparatus, and method of scheduling events and sending notifications to entities15 Oct 2020US 2020/0326997 A1Starbright Solutions, LLC
Most cited
By later US patents
- Emergency mobile telephone366US 5,742,666 ATele Digital Development, Inc. · 1998
- Automatic call back system and method of operation292US 5,155,761 AIntervoice, Inc. · 1992
- Call queue in a wireless device241US 7,373,179 B2AT&T Mobility II LLC · 2008
- Programmable telephone system217US 4,481,382 A1984
- Native machine learning service for user adaptation on a mobile platform207US 8,429,103 B1Google Inc. · 2013