- 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: 561
10-year publication summary
|
29
|
34
|
43
|
29
|
15
|
12
|
9
|
8
|
5
|
4
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Aiphone Co., Ltd. | 68 |
26 |
| Panasonic Intellectual Property Management Co., Ltd. | 34035 |
24 |
| Konica Minolta, Inc. | 9125 |
17 |
| Samsung Electronics Co., Ltd. | 157946 |
15 |
| Hewlett-Packard Development Company, L.P. | 25180 |
15 |
| NEC Platforms, Ltd. | 1065 |
14 |
| Malikie Innovations Limited | 6444 |
13 |
| Arlington Technologies, LLC | 592 |
13 |
| Apple Inc. | 58885 |
9 |
| Panasonic Corporation | 18962 |
9 |
| Cisco Technology, Inc. | 22503 |
7 |
| Mitsubishi Electric Corporation | 48048 |
7 |
| Amazon Technologies, Inc. | 28118 |
7 |
| Nippon Telegraph And Telephone East Corporation | 24 |
7 |
| CenturyLink Intellectual Property LLC | 1277 |
7 |
| AT&T Intellectual Property I, L.P. | 10002 |
6 |
| Voxsmart Limited | 26 |
6 |
| Avago Technologies International Sales Pte. Limited | 8552 |
6 |
| Qualcomm Incorporated | 92416 |
5 |
| Huawei Technologies Co., Ltd. | 123543 |
5 |
| Other owners | 343 |