- 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: 32
10-year publication summary
|
2
|
1
|
0
|
2
|
0
|
1
|
0
|
1
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| International Business Machines Corporation | 61621 |
4 |
| Oracle International Corporation | 13050 |
3 |
| Lenovo Switzerland International GmbH | 2145 |
3 |
| Toshiba Corporation | 12516 |
2 |
| Seagate Technology LLC | 3970 |
2 |
| Dell Products L.P. | 14947 |
2 |
| Pioneer Corporation | 4227 |
2 |
| IBM United Kingdom Limited | 4278 |
2 |
| Advanced Coding Technologies LLC | 23 |
2 |
| Alter Domus (US) LLC, AS Agent for The Secured Parties | 206 |
2 |
| Warner Bros. Entertainment Inc. | 2294 |
1 |
| Panasonic Corporation | 20012 |
1 |
| Hewlett-Packard Development Company, L.P. | 25719 |
1 |
| FUJIFILM Corporation | 29714 |
1 |
| Mitsubishi Electric Corporation | 46672 |
1 |
| Microsoft Technology Licensing, LLC | 54052 |
1 |
| JPMorgan Chase Bank, National Association | 8593 |
1 |
| Hewlett Packard Enterprise Development LP | 10755 |
1 |
| Other owners | 0 |