- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/274 - Devices whereby a plurality of signals may be stored simultaneously with provision for storing more than one subscriber number at a time
Patent holdings for IPC class H04M 1/274
Total number of patents in this class: 57
10-year publication summary
|
6
|
2
|
1
|
2
|
4
|
2
|
1
|
1
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ZTE Corporation | 44159 |
9 |
| Kyocera Corporation | 14335 |
4 |
| NTT DoCoMo, Inc. | 14659 |
4 |
| Tencent Technology (Shenzhen) Company Limited | 15955 |
4 |
| NEC Corporation | 36934 |
2 |
| Huawei Technologies Co., Ltd. | 123282 |
2 |
| Pioneer Corporation | 3782 |
2 |
| Pindrop Security, Inc. | 280 |
2 |
| Sevis Systems, LLC | 5 |
2 |
| BlackBerry Limited | 4864 |
1 |
| Qualcomm Incorporated | 91997 |
1 |
| LG Electronics Inc. | 75654 |
1 |
| International Business Machines Corporation | 62621 |
1 |
| Nokia Corporation | 4790 |
1 |
| Panasonic Corporation | 19060 |
1 |
| Cisco Technology, Inc. | 22491 |
1 |
| Lucent Technologies Inc. | 421 |
1 |
| Konica Minolta, Inc. | 9116 |
1 |
| Microsoft Technology Licensing, LLC | 54439 |
1 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 5249 |
1 |
| Other owners | 15 |