H04M 3/46
Arrangements for calling a number of substations in a predetermined sequence until
Official title: Arrangements for calling a number of substations in a predetermined sequence until an answer is obtained
H04M3/46 (Arrangements for calling a number of substations in a predetermined sequence until) appears on 698 US grants and 582 published applications in this corpus.
Search patents in H04M- Granted patents
- 698
- Published applications
- 582
- Assignees
- 292
- Inventors
- 1,268
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 8 | 0 |
| 1992 | 4 | 0 |
| 1993 | 11 | 0 |
| 1994 | 11 | 0 |
| 1995 | 9 | 0 |
| 1996 | 15 | 0 |
| 1997 | 6 | 0 |
| 1998 | 19 | 0 |
| 1999 | 22 | 0 |
| 2000 | 28 | 0 |
| 2001 | 24 | 8 |
| 2002 | 29 | 46 |
| 2003 | 22 | 31 |
| 2004 | 21 | 33 |
| 2005 | 13 | 24 |
| 2006 | 18 | 31 |
| 2007 | 23 | 52 |
| 2008 | 17 | 41 |
| 2009 | 11 | 34 |
| 2010 | 31 | 40 |
| 2011 | 29 | 24 |
| 2012 | 30 | 20 |
| 2013 | 36 | 27 |
| 2014 | 44 | 25 |
| 2015 | 29 | 16 |
| 2016 | 27 | 25 |
| 2017 | 35 | 27 |
| 2018 | 22 | 17 |
| 2019 | 21 | 8 |
| 2020 | 15 | 15 |
| 2021 | 11 | 7 |
| 2022 | 13 | 8 |
| 2023 | 5 | 3 |
| 2024 | 5 | 9 |
| 2025 | 5 | 10 |
| 2026 | 5 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Server apparatus, telephone connection method and telephone connection program22 Sep 2026US 12,744,846 B2NEC Platforms, Ltd.
- System and method for provision of an advanced network function to a device11 Aug 2026US 12,707,003 B1Movius
- Incoming call reminder method and electronic device16 Jun 2026US 12,659,403 B2Honor Device Co., Ltd.
- Distributed call conflict processing method and system, electronic device, and storage medium19 May 2026US 12,634,386 B2Honor Device Co., Ltd.
- Incoming call reminder system and method and electronic device utilizing vibration or ringing reminder31 Mar 2026US 12,592,992 B2Honor Device Co., Ltd.
- Call system and call method8 Jan 2026US 2026/0012536 A1Honor Device Co., Ltd.
- Method for responding to incoming call, corresponding terminal, and communication system6 Nov 2025US 2025/0343857 A1Honor Device Co., Ltd.
- Fraudulent call detection16 Oct 2025US 2025/0323996 A1McAfee, Inc.
- Systems and methods for emulating a shared line system in a multicell network19 Jun 2025US 2025/0203014 A1VTech Telecommunications Limited
- Coordination control method and apparatus, electronic device, and readable storage medium15 May 2025US 2025/0159075 A1Honor Device Co., Ltd.
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
- Personal communication service with mobility manager848US 5,329,578 ANorthern Telecom Limited · 1994
- Voice browser for interactive services and methods thereof837US 6,269,336 B1Motorola, Inc. · 2001
- Method and apparatus for an automated and interactive behavioral guidance system372US 5,377,258 ANational Medical Research Council · 1994