- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/423 - Loop networks with centralised control, e.g. polling
Patent holdings for IPC class H04L 12/423
Total number of patents in this class: 87
10-year publication summary
8
|
5
|
11
|
6
|
10
|
9
|
7
|
4
|
2
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
WAGO Verwaltungsgesellschaft mbH | 462 |
8 |
Robert Bosch GmbH | 40953 |
6 |
Omron Corporation | 6968 |
4 |
Hewlett Packard Enterprise Development LP | 10702 |
4 |
Signify Holding B.V. | 6837 |
4 |
Amrona AG | 83 |
3 |
Yahoo Assets LLC | 1127 |
3 |
Siemens AG | 24990 |
2 |
Honeywell International Inc. | 13799 |
2 |
British Telecommunications Public Limited Company | 2575 |
2 |
Oracle International Corporation | 12313 |
2 |
Mitsubishi Electric Corporation | 43934 |
2 |
Nippon Telegraph and Telephone Corporation | 14195 |
2 |
Beckhoff Automation GmbH | 486 |
2 |
Inventio AG | 2314 |
2 |
Omicron Electronics GmbH | 259 |
2 |
B&R Industrial Automation GmbH | 194 |
2 |
Apple Inc. | 50209 |
1 |
Qualcomm Incorporated | 76576 |
1 |
Honda Motor Co., Ltd. | 24537 |
1 |
Other owners | 32 |