- 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: 158
10-year publication summary
|
18
|
42
|
17
|
10
|
7
|
5
|
3
|
4
|
3
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Guangdong Oppo Mobile Telecommunications Corp., Ltd. | 23183 |
28 |
| Outdoor Wireless Networks LLC | 2106 |
21 |
| British Telecommunications Public Limited Company | 2600 |
7 |
| Boyce Technologies Inc. | 7 |
6 |
| Ericsson | 22598 |
5 |
| Adtran, Inc. | 406 |
5 |
| Global Tel*Link Corporation | 433 |
5 |
| Huawei Technologies Co., Ltd. | 122871 |
4 |
| AT&T Intellectual Property I, L.P. | 9988 |
3 |
| Enginuity Communications Corporation | 10 |
3 |
| Goplug Bags, Inc. | 7 |
3 |
| Sagemcom Broadband SAS | 488 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 28736 |
3 |
| RPX Corporation | 1151 |
2 |
| Huawei Device Co., Ltd. | 2740 |
2 |
| ABB Schweiz AG | 7578 |
2 |
| Cirrus Logic, Inc. | 1803 |
2 |
| Cirrus Logic International Semiconductor Ltd. | 914 |
2 |
| CommScope Technologies LLC | 3255 |
2 |
| Cottonwood Creek Technologies, Inc. | 2 |
2 |
| Other owners | 48 |