- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 3/72 - Groove formations, e.g. run-in groove, run-out groove
Patent holdings for IPC class G11B 3/72
Total number of patents in this class: 7
10-year publication summary
|
3
|
2
|
1
|
0
|
0
|
1
|
1
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rebeat Innovation GmbH | 5 |
2 |
| Phonocut Maschinen GmbH | 8 |
2 |
| Océ Holding B.V. | 106 |
1 |
| Ulvac Taiwan Inc. | 1 |
1 |
| Ionic Recording Company, LLC | 1 |
1 |
| Other owners | 0 |