- 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: 157
10-year publication summary
|
18
|
41
|
17
|
10
|
6
|
5
|
3
|
4
|
3
|
1
|
| 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. | 22526 |
28 |
| Outdoor Wireless Networks LLC | 2090 |
21 |
| British Telecommunications Public Limited Company | 2596 |
7 |
| Boyce Technologies Inc. | 7 |
6 |
| Ericsson | 22283 |
5 |
| Adtran, Inc. | 410 |
5 |
| Global Tel*Link Corporation | 433 |
5 |
| Huawei Technologies Co., Ltd. | 119891 |
4 |
| AT&T Intellectual Property I, L.P. | 9831 |
3 |
| Enginuity Communications Corporation | 11 |
3 |
| Goplug Bags, Inc. | 7 |
3 |
| Sagemcom Broadband SAS | 476 |
3 |
| Telefonaktiebolaget LM Ericsson (publ) | 28615 |
3 |
| RPX Corporation | 1206 |
2 |
| Huawei Device Co., Ltd. | 2753 |
2 |
| ABB Schweiz AG | 7429 |
2 |
| Cirrus Logic, Inc. | 1792 |
2 |
| Cirrus Logic International Semiconductor Ltd. | 922 |
2 |
| CommScope Technologies LLC | 3256 |
2 |
| Cottonwood Creek Technologies, Inc. | 2 |
2 |
| Other owners | 47 |