- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 13/00 - Party-line systems
Patent holdings for IPC class H04M 13/00
Total number of patents in this class: 39
10-year publication summary
|
5
|
2
|
4
|
2
|
4
|
0
|
0
|
2
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 100781 |
5 |
| Samsung Electronics Co., Ltd. | 131630 |
2 |
| Apple Inc. | 50209 |
2 |
| Cisco Technology, Inc. | 18858 |
2 |
| BCE Inc. | 431 |
2 |
| Cogito Corporation | 27 |
2 |
| Confinement Telephony Technology, LLC | 42 |
2 |
| Qualcomm Incorporated | 76576 |
1 |
| LG Electronics Inc. | 69257 |
1 |
| Micron Technology, Inc. | 24960 |
1 |
| Koninklijke Philips Electronics N.V. | 13133 |
1 |
| Infineon Technologies AG | 8189 |
1 |
| SK Hynix Inc. | 11030 |
1 |
| Google Technology Holdings LLC | 2658 |
1 |
| ZTE Corporation | 39218 |
1 |
| Huawei Device Co., Ltd. | 2758 |
1 |
| Rockwell Collins, Inc. | 2402 |
1 |
| Hubbell Incorporated | 3052 |
1 |
| Orange S.A. | 1379 |
1 |
| Aiphone Co., Ltd. | 71 |
1 |
| Other owners | 9 |