- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 1/667 - Preventing unauthorised calls from a telephone set
Patent holdings for IPC class H04M 1/667
Total number of patents in this class: 83
10-year publication summary
|
6
|
12
|
5
|
4
|
3
|
1
|
2
|
4
|
7
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Yondr, Inc. | 63 |
14 |
| LG Electronics Inc. | 74953 |
9 |
| Kyocera Corporation | 14241 |
6 |
| NEC Corporation | 36611 |
3 |
| Panasonic Corporation | 19680 |
3 |
| Confinement Telephony Technology, LLC | 49 |
3 |
| Samsung Electronics Co., Ltd. | 153573 |
2 |
| Nikon Corporation | 7310 |
2 |
| JVC Kenwood Corporation | 3108 |
2 |
| Hank Technology LLC | 9 |
2 |
| Tencent Technology (Shenzhen) Company Limited | 15627 |
2 |
| Alcatel Lucent | 4399 |
2 |
| Sharp Kabushiki Kaisha | 18630 |
2 |
| Incadence Strategic Solutions Corporation | 3 |
2 |
| Brian Cronk | 5 |
2 |
| Connor Cronk | 5 |
2 |
| Research In Motion Limited | 1418 |
1 |
| Sony Ericsson Mobile Communications AB | 1524 |
1 |
| International Business Machines Corporation | 62182 |
1 |
| Royal Bank of Canada | 2054 |
1 |
| Other owners | 21 |