- 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: 4634
10-year publication summary
551
|
595
|
479
|
449
|
454
|
396
|
316
|
252
|
208
|
54
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Huawei Technologies Co., Ltd. | 100781 |
258 |
Ericsson | 20417 |
214 |
Telefonaktiebolaget LM Ericsson (publ) | 26435 |
151 |
Verizon Patent And Licensing Inc. | 6900 |
143 |
AT&T Intellectual Property I, L.P. | 9886 |
128 |
T-Mobile USA, Inc. | 3668 |
127 |
Headwater Research LLC | 276 |
116 |
Cisco Technology, Inc. | 18858 |
82 |
Microsoft Technology Licensing, LLC | 51439 |
81 |
Samsung Electronics Co., Ltd. | 131630 |
70 |
People.ai, Inc. | 125 |
66 |
AT&T Mobility II LLC | 1982 |
60 |
International Business Machines Corporation | 60644 |
58 |
NEC Corporation | 32703 |
57 |
Nokia Solutions And Networks Oy | 5698 |
54 |
ZTE Corporation | 39218 |
52 |
T-Mobile Innovations LLC | 3213 |
52 |
TracFone Wireless, Inc. | 288 |
49 |
Oracle International Corporation | 12313 |
48 |
Twilio, Inc. | 456 |
48 |
Other owners | 2720 |