H04Q 2213/13167
Redundant apparatus
H04Q2213/13167 (Redundant apparatus) appears on 342 US grants and 172 published applications in this corpus.
Search patents in H04Q- Granted patents
- 342
- Published applications
- 172
- Assignees
- 144
- Inventors
- 661
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 18 | 0 |
| 1999 | 24 | 0 |
| 2000 | 18 | 0 |
| 2001 | 33 | 7 |
| 2002 | 23 | 15 |
| 2003 | 20 | 30 |
| 2004 | 18 | 18 |
| 2005 | 16 | 20 |
| 2006 | 16 | 13 |
| 2007 | 19 | 15 |
| 2008 | 20 | 17 |
| 2009 | 17 | 6 |
| 2010 | 15 | 8 |
| 2011 | 13 | 3 |
| 2012 | 9 | 6 |
| 2013 | 12 | 3 |
| 2014 | 6 | 3 |
| 2015 | 6 | 6 |
| 2016 | 1 | 0 |
| 2017 | 3 | 1 |
| 2018 | 0 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Service protection method and network node3 Feb 2026US 12,542,749 B2Huawei Technologies Co., Ltd.
- Redundant sensor system with fault detection and mitigation18 Feb 2020US 10,567,854 B1NXP USA, Inc.
- Circuit-switched and multimedia subsystem voice continuity with bearer path interruption29 Oct 2019US 10,462,191 B2BlackBerry Limited
- Systems and methods for seamless communications recovery and backup using networked communication devices10 Oct 2017US 9,787,530 B2Disaster Recovery Center, Inc.
- Communication system, control apparatus, communication apparatus, information-relaying method, and program14 Mar 2017US 9,596,129 B2NEC Corporation
- Service Protection Method and Network Node22 Feb 2024US 2024/0064111 A1Huawei Technologies Co., Ltd.
- Method and system for intelligent routing of an incoming call over a dual telecommunication network28 Dec 2017US 2017/0374600 A1Telefonica Digital Espana, S.L.U.
- Method and arrangement for providing data plane redundancy21 May 2015US 2015/0138959 A1Telefonaktiebolaget'l M Ericsson (Publ)
- Method and system for providing to a second party, computer-network related information about a first party9 Apr 2015US 2015/0098558 A1Rakuten, Inc.
- Method and apparatus for fast reroute in a connection-oriented network12 Feb 2015US 2015/0043328 A1Juniper Networks, Inc.
Most cited
By later US patents
- Communications system using a central controller to control at least one network and agent system305US 5,848,143 AGeoTel Communications Corp. · 1998
- Communications system using a central controller to control at least one network and agent system303US 5,546,452 AGeoTel Communications Corp. · 1996
- Cellular digital packet data (CDPD) network transmission system incorporating cellular link integrity monitoring275US 5,454,024 A1995
- Real time fault tolerant transaction processing system222US 5,084,816 ABell Communications Research, Inc. · 1992
- Broadband telecommunications system213US 5,991,301 ASprint Communications Co.L.P. · 1999