Patent holdings for IPC class G11B 15/18

Total number of patents in this class: 140

10-year publication summary

19
6
13
8
10
4
2
4
3
2
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
International Business Machines Corporation
60336
35
JPMorgan Chase Bank, National Association
8445
14
Oracle America, Inc.
3384
7
Hewlett Packard Enterprise Development LP
10656
7
Apple Inc.
53192
4
FUJIFILM Corporation
28873
4
Grass Valley Canada
235
4
Marvell Asia PTE, Ltd.
6556
4
Cavium International
5154
4
Hewlett-Packard Development Company, L.P.
26243
3
Seagate Technology LLC
3979
3
Marvell International Ltd.
1186
3
Dell Products L.P.
13358
3
Group 47, Inc.
5
3
Quantum Corporation
305
3
Spectra Logic Corporation
139
3
Toshiba Corporation
12104
2
Oracle International Corporation
12628
2
Lapis Semiconductor Co., Ltd.
912
2
EMC IP Holding Company LLC
10927
2
Other owners 28