- 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: 809
10-year publication summary
|
61
|
55
|
69
|
78
|
62
|
35
|
26
|
27
|
20
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 43385 |
26 |
| Qualcomm Incorporated | 89294 |
22 |
| Mitsubishi Electric Corporation | 47449 |
22 |
| Beckhoff Automation GmbH | 541 |
15 |
| SEW-EURODRIVE GmbH & Co. KG | 1996 |
15 |
| Siemens AG | 24329 |
12 |
| Infineon Technologies AG | 8331 |
12 |
| Omron Corporation | 7336 |
12 |
| Huawei Technologies Co., Ltd. | 118879 |
11 |
| WAGO Verwaltungsgesellschaft mbH | 573 |
11 |
| Avago Technologies International Sales Pte. Limited | 8632 |
11 |
| Analog Devices, Inc. | 3346 |
10 |
| Samsung Electronics Co., Ltd. | 152304 |
8 |
| GeoFrenzy, Inc. | 86 |
8 |
| LG Electronics Inc. | 74619 |
7 |
| Airbus Operations GmbH | 3397 |
7 |
| Panasonic Intellectual Property Management Co., Ltd. | 33168 |
7 |
| Sumitomo Wiring Systems, Ltd. | 10714 |
7 |
| Bayerische Motoren Werke Aktiengesellschaft | 14918 |
7 |
| Phoenix Contact GmbH & Co. KG | 2285 |
7 |
| Other owners | 572 |