Patent holdings for IPC class H04M 3/02

Total number of patents in this class: 224

10-year publication summary

52
33
25
16
17
9
10
7
8
1
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Microsoft Technology Licensing, LLC
53473
11
Theatro Labs, Inc.
64
10
NEC Corporation
35219
8
AT&T Intellectual Property I, L.P.
9437
7
Huawei Technologies Co., Ltd.
110249
7
RingCentral, Inc.
748
6
Malikie Innovations Limited
7231
6
Samsung Electronics Co., Ltd.
143303
5
Verizon Patent And Licensing Inc.
7041
5
Callyo 2009 Corp.
43
5
Google LLC
41645
5
Conversation Processing Intelligence Corp.
13
5
Nokia Technologies Oy
17456
4
Qualcomm Incorporated
84084
3
Sony Corporation
31183
3
Panasonic Intellectual Property Management Co., Ltd.
30769
3
ZTE Corporation
41858
3
8x8, Inc.
435
3
Alvaria Cayman (cx)
307
3
Zoom Communications, Inc.
625
3
Other owners 119