- All sections
- H - Electricity
- H04M - Telephonic communication
- H04M 15/00 - Arrangements for metering, time-control or time-indication
Patent holdings for IPC class H04M 15/00
Total number of patents in this class: 4684
10-year publication summary
|
595
|
479
|
450
|
455
|
396
|
318
|
257
|
212
|
171
|
129
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huawei Technologies Co., Ltd. | 111237 |
264 |
| Ericsson | 21622 |
222 |
| Telefonaktiebolaget LM Ericsson (publ) | 27825 |
166 |
| Verizon Patent And Licensing Inc. | 7070 |
141 |
| T-Mobile USA, Inc. | 4050 |
135 |
| Headwater Research LLC | 292 |
128 |
| AT&T Intellectual Property I, L.P. | 9481 |
120 |
| Microsoft Technology Licensing, LLC | 53545 |
81 |
| Samsung Electronics Co., Ltd. | 144426 |
74 |
| People.ai, Inc. | 140 |
73 |
| Cisco Technology, Inc. | 19655 |
70 |
| NEC Corporation | 35424 |
62 |
| AT&T Mobility II LLC | 1852 |
59 |
| T-Mobile Innovations LLC | 3598 |
57 |
| International Business Machines Corporation | 61123 |
56 |
| Nokia Solutions And Networks Oy | 6539 |
55 |
| ZTE Corporation | 42052 |
54 |
| Twilio, Inc. | 573 |
51 |
| Oracle International Corporation | 12907 |
48 |
| Nokia Technologies Oy | 17579 |
48 |
| Other owners | 2720 |