H04M 5/00
Manual exchanges
Official title: Manual exchanges (substation equipment in general H04M1/00)
H04M5/00 (Manual exchanges) appears on 51 US grants and 33 published applications in this corpus.
Search patents in H04M- Granted patents
- 51
- Published applications
- 33
- Assignees
- 27
- Inventors
- 58
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 1 | 2 |
| 2014 | 5 | 7 |
| 2015 | 3 | 4 |
| 2016 | 4 | 4 |
| 2017 | 6 | 0 |
| 2018 | 5 | 6 |
| 2019 | 6 | 3 |
| 2020 | 3 | 2 |
| 2021 | 2 | 0 |
| 2022 | 2 | 1 |
| 2023 | 0 | 0 |
| 2024 | 2 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
- H04M 5/12Calling substations7
- H04M 5/02Constructional details4
- H04M 5/04Arrangements for indicating calls or supervising connections for calling or clearing4
- H04M 5/18Arrangements for signalling the class or number of called or calling line3
- H04M 5/08Manual exchanges: using connecting means other than cords2
- H04M 5/14Applications of speech amplifiers1
- H04M 5/10Manual exchanges: using separate plug for each subscriber0
- H04M 5/16Manual exchanges: with means for reducing interference0
Recent patents
- Telephone service powered hotspot7 Oct 2025US 12,438,984 B1United Services Automobile Association (USAA)
- Matching using agent/caller sensitivity to performance15 Oct 2024US 12,120,271 B2Afiniti, Ltd.
- Matching using agent/caller sensitivity to performance2 Jan 2024US 11,863,708 B2Afiniti, Ltd.
- Parallel signal processing system and method24 May 2022US 11,343,597 B1
- Matching using agent/caller sensitivity to performance22 Feb 2022US 11,258,907 B2Afiniti, Ltd.
- Matching using agent/caller sensitivity to performance14 Mar 2024US 2024/0089376 A1Afiniti, Ltd.
- Matching using agent/caller sensitivity to performance28 Apr 2022US 2022/0131977 A1Afiniti, Ltd.
- Matching using agent/caller sensitivity to performance10 Dec 2020US 2020/0389557 A1Afiniti International Holdings, Ltd.
- Matching using agent/caller sensitivity to performance9 Jan 2020US 2020/0014802 A1Afiniti International Holdings, Ltd.
- Method for testing an audio communication system of an air-craft, and aircraft having an audio communication system28 Nov 2019US 2019/0364152 A1Airbus Operations GmbH
Most cited
By later US patents
- Matching using agent/caller sensitivity to performance185US 9,020,137 B2Satmap International Holdings Limited · 2015
- Use of abstracted data in pattern matching system180US 8,792,630 B2Satmap International Holdings Limited · 2014
- Back office services of an intelligent automated agent for a contact center134US 8,767,948 B1Genesys Telecommunications Laboratories, Inc. · 2014
- System and method for providing a caller identification to a called party for calls relayed through a call center104US 6,831,974 B1Sprint Communications Co.L.P. · 2004
- Intelligent automated agent and interactive voice response for a contact center93US 9,386,152 B2Genesys Telecommunications Laboratories, Inc. · 2016