- 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: 72
10-year publication summary
|
4
|
8
|
6
|
2
|
1
|
2
|
3
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ZTE Corporation | 39218 |
9 |
| Kyocera Corporation | 12735 |
4 |
| NTT DoCoMo, Inc. | 11501 |
4 |
| Tencent Technology (Shenzhen) Company Limited | 12951 |
4 |
| NEC Corporation | 32703 |
3 |
| Nokia Corporation | 6965 |
3 |
| Pioneer Corporation | 4843 |
3 |
| Sharp Kabushiki Kaisha | 18957 |
3 |
| Matsushita Electric Industrial Co., Ltd. | 4724 |
2 |
| Huawei Technologies Co., Ltd. | 100781 |
2 |
| Nokia Inc. | 2036 |
2 |
| Pindrop Security, Inc. | 209 |
2 |
| Vodafone K.K. | 37 |
2 |
| BlackBerry Limited | 5958 |
1 |
| Qualcomm Incorporated | 76576 |
1 |
| LG Electronics Inc. | 69257 |
1 |
| Sony Ericsson Mobile Communications AB | 2014 |
1 |
| International Business Machines Corporation | 60644 |
1 |
| Panasonic Corporation | 20786 |
1 |
| Fujitsu Limited | 19265 |
1 |
| Other owners | 22 |