- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 15/04 - Preventing, inhibiting, or warning against accidental erasing or double recording
Patent holdings for IPC class G11B 15/04
Total number of patents in this class: 30
10-year publication summary
|
1
|
0
|
2
|
0
|
1
|
0
|
1
|
0
|
0
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 62847 |
4 |
| Oracle International Corporation | 13725 |
3 |
| Lenovo Switzerland International GmbH | 2095 |
3 |
| Toshiba Corporation | 12732 |
2 |
| Seagate Technology LLC | 3970 |
2 |
| Dell Products L.P. | 17235 |
2 |
| IBM United Kingdom Limited | 4039 |
2 |
| Alter Domus (US) LLC, AS Agent for The Secured Parties | 193 |
2 |
| Warner Bros. Entertainment Inc. | 2315 |
1 |
| Panasonic Corporation | 18658 |
1 |
| Hewlett-Packard Development Company, L.P. | 25121 |
1 |
| Mitsubishi Electric Corporation | 48409 |
1 |
| Huawei Technologies Co., Ltd. | 125107 |
1 |
| Microsoft Technology Licensing, LLC | 54661 |
1 |
| JPMorgan Chase Bank, National Association | 8970 |
1 |
| Hewlett Packard Enterprise Development LP | 11551 |
1 |
| Advanced Coding Technologies LLC | 21 |
1 |
| Pezyotta Digital Data Machine Ltd. | 19 |
1 |
| Other owners | 0 |