- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 19/00 - Current supply arrangements for telephone systems
Patent holdings for IPC class H04M 19/00
Total number of patents in this class: 168
10-year publication summary
|
9
|
12
|
18
|
42
|
17
|
10
|
7
|
5
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 18739 |
28 |
| CommScope Technologies LLC | 4937 |
22 |
| British Telecommunications Public Limited Company | 2575 |
7 |
| Huawei Technologies Co., Ltd. | 100781 |
6 |
| Boyce Technologies Inc. | 7 |
6 |
| Ericsson | 20417 |
5 |
| Adtran, Inc. | 443 |
5 |
| AT&T Intellectual Property I, L.P. | 9886 |
3 |
| ABB Schweiz AG | 6321 |
3 |
| Cirrus Logic International Semiconductor Ltd. | 792 |
3 |
| Cottonwood Creek Technologies, Inc. | 3 |
3 |
| Enginuity Communications Corporation | 13 |
3 |
| Global Tel*Link Corporation | 431 |
3 |
| Goplug Bags, Inc. | 7 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 26435 |
3 |
| RPX Corporation | 1571 |
2 |
| Huawei Device Co., Ltd. | 2758 |
2 |
| BCE Inc. | 431 |
2 |
| Elbex Video Ltd. | 108 |
2 |
| MaxLinear, Inc. | 708 |
2 |
| Other owners | 55 |