DIFF Subgroup
H04L 41/06 Management of faults, events, alarms or notifications
Introduced: January 2022
Full Title
Arrangements for maintenance, administration or management of data switching networks, e.g. of packet switching networks > Management of faults, events, alarms or notifications
IPC and CPC are identically structured here. All 8 subcodes exist in both systems.
1 shared codes have differing titles between IPC and CPC.
IPC defines codes here since 2022.
Child Classifications
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- H04L 41/0604 using filtering, e.g. reduction of information by using priority, element types, position or time since 2022 +5 CPC IPC+CPC Available in IPC and CPC
- H04L 41/0631 using root cause analysis; using analysis of correlation between notifications, alarms or events based on decision criteria, e.g. hierarchy, tree or time analysis since 2022 +4 CPC IPC+CPC Available in IPC and CPC
- H04L 41/0654 using network fault recovery (ring fault isolation or reconfiguration in loop networks without recovery actions by a network management system H04L12/437) since 2022 IPC+CPC Available in IPC and CPC
- H04L 41/0686 Additional information in the notification, e.g. enhancement of specific meta-data since 2022 IPC+CPC Available in IPC and CPC
- H04L 41/069 using logs of notifications; Post-processing of notifications since 2022 IPC+CPC Available in IPC and CPC
- H04L 41/0695 the faulty arrangement being the maintenance, administration or management system since 2022 IPC+CPC Available in IPC and CPC
Top Applicants
Top Applicants (IPC)
Class H04,2013–2023, worldwide · Source: EPO PATSTAT
- QUALCOMM US 97,396
- HUAWEI TECHNOLOGIES COMPANY CN 96,502
- SAMSUNG ELECTRONICS COMPANY KR 86,981
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 55,869
- HUAWEI TECHNOLOGIES COMPANY 55,349
- LG ELECTRONICS KR 53,649
- CANON 33,341
- SONY CORPORATION JP 32,761
- ZTE CORPORATION CN 32,274
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION 28,327
Top Applicants (CPC)
Class H04,2013–2023, worldwide · Source: EPO PATSTAT
- HUAWEI TECHNOLOGIES COMPANY CN 101,476
- QUALCOMM US 101,139
- SAMSUNG ELECTRONICS COMPANY KR 96,655
- TELEFONAKTIEBOLAGET LM ERICSSON (PUBL) SE 57,744
- LG ELECTRONICS KR 55,253
- HUAWEI TECHNOLOGIES COMPANY 54,181
- SONY CORPORATION JP 35,309
- ZTE CORPORATION CN 32,950
- INTEL CORPORATION US 27,533
- GUANGDONG OPPO MOBILE TELECOMMUNICATIONS CORPORATION CN 27,498