- 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: 90
10-year publication summary
|
11
|
6
|
10
|
9
|
7
|
4
|
2
|
4
|
3
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| WAGO Verwaltungsgesellschaft mbH | 583 |
8 |
| Robert Bosch GmbH | 44045 |
6 |
| Hewlett Packard Enterprise Development LP | 11003 |
5 |
| Omron Corporation | 7352 |
4 |
| Nippon Telegraph and Telephone Corporation | 15922 |
4 |
| Signify Holding B.V. | 7970 |
3 |
| Yahoo Assets LLC | 1167 |
3 |
| Siemens AG | 24081 |
2 |
| Honeywell International Inc. | 12755 |
2 |
| British Telecommunications Public Limited Company | 2601 |
2 |
| Oracle International Corporation | 13516 |
2 |
| Mitsubishi Electric Corporation | 47860 |
2 |
| Beckhoff Automation GmbH | 545 |
2 |
| Inventio AG | 2401 |
2 |
| Omicron Electronics GmbH | 281 |
2 |
| Apple Inc. | 58534 |
1 |
| Qualcomm Incorporated | 91550 |
1 |
| Honda Motor Co., Ltd. | 25976 |
1 |
| Nokia Corporation | 4813 |
1 |
| Toshiba Corporation | 12542 |
1 |
| Other owners | 36 |