- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 9/00 - Arrangements for interconnection not involving centralised switching
Patent holdings for IPC class H04M 9/00
Total number of patents in this class: 610
10-year publication summary
|
37
|
29
|
34
|
40
|
25
|
15
|
11
|
9
|
8
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aiphone Co., Ltd. | 68 |
26 |
| Panasonic Intellectual Property Management Co., Ltd. | 31806 |
24 |
| Konica Minolta, Inc. | 8784 |
17 |
| Malikie Innovations Limited | 7079 |
17 |
| Hewlett-Packard Development Company, L.P. | 25813 |
16 |
| NEC Platforms, Ltd. | 1150 |
16 |
| Samsung Electronics Co., Ltd. | 147501 |
15 |
| Arlington Technologies, LLC | 623 |
13 |
| Panasonic Corporation | 20050 |
10 |
| Apple Inc. | 55387 |
8 |
| Cisco Technology, Inc. | 21991 |
7 |
| Mitsubishi Electric Corporation | 46397 |
7 |
| Amazon Technologies, Inc. | 26891 |
7 |
| Nippon Telegraph and Telephone West Corporation | 25 |
7 |
| Nippon Telegraph And Telephone East Corporation | 25 |
7 |
| Nokia Technologies Oy | 18229 |
7 |
| CenturyLink Intellectual Property LLC | 1243 |
7 |
| CommScope Technologies LLC | 3243 |
7 |
| Qualcomm Incorporated | 86346 |
6 |
| AT&T Intellectual Property I, L.P. | 9576 |
6 |
| Other owners | 380 |