Patent holdings for IPC class H04M 1/56

Total number of patents in this class: 611

10-year publication summary

55
49
57
38
22
20
15
4
8
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
First Orion Corp.
165
37
Microsoft Technology Licensing, LLC
53127
25
Apple Inc.
53393
16
International Business Machines Corporation
60411
16
Verizon Patent And Licensing Inc.
6986
16
Securus Technologies, LLC
290
15
Samsung Electronics Co., Ltd.
140839
14
AT&T Intellectual Property I, L.P.
9390
13
AccuData, Inc., a Michigan corporation,
15
13
CenturyLink Intellectual Property LLC
1191
13
Malikie Innovations Limited
7289
12
United Services Automobile Association (USAA)
2866
11
Arlington Technologies, LLC
631
10
Global Tel*Link Corporation
426
9
YouMail, Inc.
50
9
Ankura Trust Company, LLC
337
9
RingCentral, Inc.
750
8
NEC Corporation
34763
7
Cisco Technology, Inc.
19506
7
Huawei Technologies Co., Ltd.
108191
7
Other owners 344