H04Q 2011/0079
Operation or maintenance aspects
Official title: {Operation or maintenance aspects}
H04Q2011/0079 (Operation or maintenance aspects) appears on 2,014 US grants and 2,121 published applications in this corpus.
Search patents in H04Q- Granted patents
- 2,014
- Published applications
- 2,121
- Assignees
- 515
- Inventors
- 3,773
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 11 | 0 |
| 1997 | 11 | 0 |
| 1998 | 21 | 0 |
| 1999 | 22 | 0 |
| 2000 | 29 | 0 |
| 2001 | 39 | 23 |
| 2002 | 33 | 127 |
| 2003 | 47 | 85 |
| 2004 | 53 | 54 |
| 2005 | 55 | 54 |
| 2006 | 60 | 40 |
| 2007 | 63 | 63 |
| 2008 | 46 | 78 |
| 2009 | 54 | 109 |
| 2010 | 70 | 83 |
| 2011 | 57 | 92 |
| 2012 | 72 | 106 |
| 2013 | 102 | 91 |
| 2014 | 121 | 83 |
| 2015 | 96 | 99 |
| 2016 | 91 | 117 |
| 2017 | 151 | 110 |
| 2018 | 115 | 142 |
| 2019 | 120 | 77 |
| 2020 | 91 | 84 |
| 2021 | 74 | 65 |
| 2022 | 65 | 66 |
| 2023 | 51 | 66 |
| 2024 | 59 | 80 |
| 2025 | 64 | 77 |
| 2026 | 51 | 50 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Cloud-based rogue network device detection6 Oct 2026US 12,756,460 B1Calix, Inc.
- Interworking between variable capacity optical layer and Ethernet/IP/MPLS layer6 Oct 2026US 12,756,961 B2Ciena Corporation
- Passive optical network monitoring29 Sep 2026US 12,750,134 B2Corning Research & Development Corporation
- Auto-provisioning optical channels based on spectrum monitoring29 Sep 2026US 12,750,611 B2Ciena Corporation
- Single span calibration in a multi-span optical line system15 Sep 2026US 12,739,540 B2Ciena Corporation
- Optical link monitoring apparatus and method for optical communication network1 Oct 2026US 2026/0304012 A1Electronics and Telecommunications Research Institute
- Transmission data processing method and optical fiber network system24 Sep 2026US 2026/0292374 A1Realtek Singapore Private Limited
- Method and Device for Configuring Operation Parameter of Burst Clock Data Recovery (BCDR) Chip24 Sep 2026US 2026/0292376 A1Zte Corporation
- Rogue ONU Detection17 Sep 2026US 2026/0281596 A1Adtran, Inc.
- Passive optical network for utility infrastructure resiliency10 Sep 2026US 2026/0270597 A1Commonwealth Edison Company
Most cited
By later US patents
- Method and apparatus for identifying and tracking connections of communication lines294US 6,002,331 A1999
- Multi-wavelength cross-connect optical switch282US 6,097,859 AThe Regents of the University of California · 2000
- Method and system for detecting optical faults within the optical domain of a fiber communication network248US 6,005,694 AMCI WorldCom, Inc. · 1999
- Distributed telecommunications switching system240US 5,495,484 ADSC Communications Corporation · 1996
- Method of transferring packets and router device therefor184US 7,433,301 B2Hitachi, Ltd. · 2008