H04M 3/08
Indicating faults in circuits or apparatus
H04M3/08 (Indicating faults in circuits or apparatus) appears on 747 US grants and 508 published applications in this corpus.
Search patents in H04M- Granted patents
- 747
- Published applications
- 508
- Assignees
- 320
- Inventors
- 1,499
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 7 | 0 |
| 1995 | 10 | 0 |
| 1996 | 7 | 0 |
| 1997 | 15 | 0 |
| 1998 | 19 | 0 |
| 1999 | 41 | 0 |
| 2000 | 28 | 0 |
| 2001 | 29 | 12 |
| 2002 | 34 | 34 |
| 2003 | 29 | 37 |
| 2004 | 33 | 41 |
| 2005 | 44 | 42 |
| 2006 | 44 | 54 |
| 2007 | 24 | 32 |
| 2008 | 20 | 33 |
| 2009 | 35 | 16 |
| 2010 | 28 | 23 |
| 2011 | 29 | 19 |
| 2012 | 29 | 17 |
| 2013 | 28 | 19 |
| 2014 | 29 | 13 |
| 2015 | 23 | 20 |
| 2016 | 23 | 13 |
| 2017 | 16 | 14 |
| 2018 | 11 | 13 |
| 2019 | 13 | 12 |
| 2020 | 8 | 10 |
| 2021 | 15 | 5 |
| 2022 | 6 | 4 |
| 2023 | 6 | 7 |
| 2024 | 5 | 5 |
| 2025 | 5 | 7 |
| 2026 | 4 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Contact center deflection system1 Sep 2026US 12,726,571 B2State Farm Mutual Automobile Insurance Company
- Detecting a disconnect at a DSLAM14 Jul 2026US 12,684,062 B2British Telecommunications Public Ltd.Co.
- Using an on-premises telephony node during an outage7 Apr 2026US 12,598,257 B2Zoom Communications, Inc.
- Disaster plan implementation for a unified communications network17 Mar 2026US 12,581,014 B2Nuwave Communications, Inc.
- DSL fault location2 Sep 2025US 12,407,773 B2British Telecommunications Public Ltd.Co.
- On-Premises Telephony Node Operation During an Outage2 Jul 2026US 2026/0189659 A1Zoom Communications, Inc.
- Disaster plan implementation for a unified communications network18 Jun 2026US 2026/0172505 A1Nuwave Communications, Inc.
- System and method for timely detection and reporting telecom cable and other telecom equipement theft28 May 2026US 2026/0148625 A1
- Routing To Survivable Distribution Group5 Mar 2026US 2026/0067402 A1Zoom Communications, Inc.
- System and method for tracing network issues26 Feb 2026US 2026/0058861 A1Jio Platforms Limited
Most cited
By later US patents
- Apparatus for supervising an automatic call distribution telephone system355US 5,465,286 AExecutone Information Systems, Inc. · 1995
- System for automated workflow in a network management and operations system321US 6,445,774 B1MCI Communications Corporation · 2002
- Communications network state and topology monitor285US 5,049,873 ANetwork Equipment Technologies, Inc. · 1991
- Event correlation267US 5,748,098 ABritish Telecommunications Public Ltd.Co. · 1998
- Method and software for training a customer service representative by analysis of a telephonic interaction between a customer and a contact center265US 8,094,790 B2Mattersight Corporation · 2012