- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/403 - Bus networks with centralised control, e.g. polling
Patent holdings for IPC class H04L 12/403
Total number of patents in this class: 806
10-year publication summary
|
61
|
67
|
55
|
69
|
79
|
63
|
35
|
28
|
27
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 41823 |
29 |
| Mitsubishi Electric Corporation | 44904 |
22 |
| Qualcomm Incorporated | 82009 |
21 |
| SEW-EURODRIVE GmbH & Co. KG | 1919 |
15 |
| Siemens AG | 24568 |
14 |
| Beckhoff Automation GmbH | 505 |
14 |
| Infineon Technologies AG | 8135 |
12 |
| Omron Corporation | 7159 |
12 |
| Huawei Technologies Co., Ltd. | 106915 |
11 |
| WAGO Verwaltungsgesellschaft mbH | 501 |
11 |
| Avago Technologies International Sales Pte. Limited | 8935 |
11 |
| Analog Devices, Inc. | 3423 |
10 |
| Samsung Electronics Co., Ltd. | 139302 |
8 |
| Airbus Operations GmbH | 3292 |
8 |
| Bayerische Motoren Werke Aktiengesellschaft | 13882 |
8 |
| GeoFrenzy, Inc. | 79 |
8 |
| LG Electronics Inc. | 71074 |
7 |
| Sumitomo Wiring Systems, Ltd. | 10025 |
7 |
| Sumitomo Electric Industries, Ltd. | 14990 |
6 |
| Panasonic Intellectual Property Management Co., Ltd. | 29800 |
6 |
| Other owners | 566 |