H04J 3/14
Monitoring arrangements
Official title: Monitoring arrangements {(for SDH/SONET rings H04J3/085)}
H04J3/14 (Monitoring arrangements) appears on 1,478 US grants and 1,108 published applications in this corpus.
Search patents in H04J- Granted patents
- 1,478
- Published applications
- 1,108
- Assignees
- 426
- Inventors
- 2,749
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 4 | 0 |
| 1982 | 6 | 0 |
| 1983 | 10 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 14 | 0 |
| 1989 | 9 | 0 |
| 1990 | 11 | 0 |
| 1991 | 9 | 0 |
| 1992 | 15 | 0 |
| 1993 | 21 | 0 |
| 1994 | 27 | 0 |
| 1995 | 30 | 0 |
| 1996 | 41 | 0 |
| 1997 | 47 | 0 |
| 1998 | 60 | 0 |
| 1999 | 47 | 0 |
| 2000 | 33 | 0 |
| 2001 | 26 | 9 |
| 2002 | 25 | 43 |
| 2003 | 39 | 52 |
| 2004 | 31 | 43 |
| 2005 | 39 | 50 |
| 2006 | 46 | 52 |
| 2007 | 38 | 104 |
| 2008 | 56 | 95 |
| 2009 | 66 | 64 |
| 2010 | 65 | 43 |
| 2011 | 52 | 36 |
| 2012 | 53 | 46 |
| 2013 | 44 | 33 |
| 2014 | 60 | 39 |
| 2015 | 52 | 40 |
| 2016 | 40 | 68 |
| 2017 | 40 | 27 |
| 2018 | 35 | 20 |
| 2019 | 37 | 29 |
| 2020 | 32 | 39 |
| 2021 | 35 | 36 |
| 2022 | 35 | 33 |
| 2023 | 31 | 38 |
| 2024 | 40 | 37 |
| 2025 | 29 | 18 |
| 2026 | 16 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for time distribution in a communication network of a vehicle, and communication network1 Sep 2026US 12,726,290 B2Bayerische Motoren Werke Aktiengesellschaft
- Data center traffic analytics synchronization30 Jun 2026US 12,670,003 B2Cisco Technology, Inc.
- System and method for network policy simulation16 Jun 2026US 12,657,049 B2Cisco Technology, Inc.
- Validating synchronized local times of at least a first and a second control unit2 Jun 2026US 12,647,194 B2Bayerische Motoren Werke Aktiengesellschaft
- Integrating terrestrial time feed with data center distribution networks for clock synchronization12 May 2026US 12,627,391 B2Equinix, Inc.
- Coordinated Layer-0 and Layer-1 Control for Right-Sizing Optical Interfaces6 Aug 2026US 2026/0230177 A1Ciena Corporation
- Methods, systems, and computer readable media for testing precision time protocol (ptp) devices with adaptive ptp synchronization interval optimization6 Aug 2026US 2026/0230297 A1
- Signaling jitter statistics information6 Aug 2026US 2026/0230863 A1Telefonaktiebolaget LM Ericsson (publ)
- Enhanced restart of nodes after interruption30 Jul 2026US 2026/0222169 A1Net Insight AB
- Timing synchronization status reporting compliant with ue's subscription30 Jul 2026US 2026/0223023 A1Telefonaktiebolaget LM Ericsson (publ)
Most cited
By later US patents
- Transport of payload information and control messages on multiple orthogonal carriers spread throughout substantially all of a frequency bandwith320US 6,275,990 B1ADC Telecommunications, Inc. · 2001
- Channel selection for a hybrid fiber coax network264US 6,334,219 B1ADC Telecommunications, Inc. · 2001
- Orderwire communication system227US 4,449,246 AHarris Corporation · 1984
- Dynamic bandwidth allocation220US 7,069,577 B2SDC Telecommunications, Inc. · 2006
- Full duplex digital transmission facility loop-back test, diagnostics and maintenance system216US 5,343,461 AAmeritech Services, Inc. · 1994