- All sections
- H - Electricity
- H04L - Transmission of digital information, e.g. telegraphic communication
- H04L 12/50 - Circuit switching systems, i.e. systems in which the path is physically permanent during the communication
Patent holdings for IPC class H04L 12/50
Total number of patents in this class: 684
10-year publication summary
|
55
|
36
|
32
|
24
|
15
|
21
|
12
|
2
|
3
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cisco Technology, Inc. | 22668 |
32 |
| Huawei Technologies Co., Ltd. | 125590 |
32 |
| Hewlett Packard Enterprise Development LP | 12492 |
32 |
| Intel Corporation | 46342 |
23 |
| Avago Technologies International Sales Pte. Limited | 8518 |
22 |
| Ericsson | 23125 |
20 |
| LG Electronics Inc. | 76328 |
14 |
| Samsung Electronics Co., Ltd. | 159755 |
13 |
| Qualcomm Incorporated | 93957 |
13 |
| International Business Machines Corporation | 62871 |
12 |
| Marvell Asia PTE, Ltd. | 6235 |
11 |
| Cavium International | 4533 |
11 |
| Altera Corporation | 2485 |
10 |
| ZTE Corporation | 44368 |
9 |
| Oracle America, Inc. | 2423 |
8 |
| Fujitsu Limited | 16814 |
7 |
| salesforce.com, inc. | 6116 |
7 |
| Nokia Technologies Oy | 22034 |
7 |
| T-Mobile USA, Inc. | 4563 |
7 |
| Ciena Corporation | 2213 |
6 |
| Other owners | 388 |