Patent holdings for IPC class G11B 27/02

Total number of patents in this class: 335

10-year publication summary

8
18
18
31
46
38
33
33
31
22
2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Principal owners for this class

Owner
All patents
This class
Sony Corporation
43793
28
Rose Trading LLC
20
11
Koninklijke Philips Electronics N.V.
25790
10
Yamaha Corporation
4116
10
Microsoft Technology Licensing, LLC
47447
9
Google LLC
30549
9
Apple Inc.
37210
8
LG Electronics Inc.
59901
8
Intel Corporation
47169
8
Thomson Licensing
4800
8
International Business Machines Corporation
73328
7
Pioneer Corporation
5114
7
GoPro, Inc.
1262
7
Samsung Electronics Co., Ltd.
105336
6
Verizon Patent And Licensing Inc.
5281
6
Amazon Technologies, Inc.
18573
6
AT&T Intellectual Property I, L.P.
10575
5
Canon Inc.
39428
5
Matsushita Electric Industrial Co., Ltd.
13015
5
Qualcomm Incorporated
59243
4
Other owners 168