- 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: 814
10-year publication summary
|
67
|
55
|
69
|
80
|
63
|
35
|
29
|
28
|
20
|
13
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 44176 |
27 |
| Qualcomm Incorporated | 92416 |
22 |
| Mitsubishi Electric Corporation | 48048 |
22 |
| Beckhoff Automation GmbH | 546 |
15 |
| SEW-EURODRIVE GmbH & Co. KG | 2034 |
15 |
| Infineon Technologies AG | 8402 |
13 |
| Siemens AG | 24020 |
12 |
| Omron Corporation | 7370 |
12 |
| Huawei Technologies Co., Ltd. | 123543 |
11 |
| WAGO Verwaltungsgesellschaft mbH | 585 |
11 |
| Avago Technologies International Sales Pte. Limited | 8552 |
11 |
| Analog Devices, Inc. | 3321 |
10 |
| Samsung Electronics Co., Ltd. | 157946 |
8 |
| Sumitomo Wiring Systems, Ltd. | 11029 |
8 |
| GeoFrenzy, Inc. | 88 |
8 |
| LG Electronics Inc. | 75818 |
7 |
| Airbus Operations GmbH | 3449 |
7 |
| Sumitomo Electric Industries, Ltd. | 16355 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
7 |
| Bayerische Motoren Werke Aktiengesellschaft | 15289 |
7 |
| Other owners | 574 |