- All sections
- H - Electricity
- H04Q - Selecting
- H04Q 3/58 - Arrangements providing connection between main exchange and sub-exchange or satellite
Patent holdings for IPC class H04Q 3/58
Total number of patents in this class: 92
10-year publication summary
|
6
|
7
|
4
|
2
|
4
|
2
|
2
|
2
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| NEC Platforms, Ltd. | 1068 |
28 |
| Nippon Telegraph And Telephone East Corporation | 24 |
12 |
| Nippon Telegraph and Telephone West Corporation | 14 |
8 |
| NEC Infrontia Corporation | 57 |
8 |
| NEC Corporation | 37168 |
5 |
| NTT WEST, Inc. | 8 |
4 |
| Itall Inc. | 3 |
3 |
| Mitsubishi Electric Corporation | 48172 |
2 |
| Nippon Telegraph and Telephone Corporation | 15939 |
2 |
| The Boeing Company | 20186 |
1 |
| AT&T Intellectual Property I, L.P. | 10002 |
1 |
| Hitachi Kokusai Electric Inc. | 830 |
1 |
| Brother Industries, Ltd. | 12830 |
1 |
| Konica Minolta, Inc. | 9150 |
1 |
| Oki Electric Industry Co., Ltd. | 1574 |
1 |
| Agency for Science, Technology and Research | 3749 |
1 |
| Divitas Networks Inc. | 6 |
1 |
| Inabata & Co., Ltd. | 9 |
1 |
| Mitsubishi Electric Building Techno-Service Co., Ltd. | 414 |
1 |
| Myers Wolin, LLC | 32 |
1 |
| Other owners | 9 |