- All sections
- G - Physics
- G11B - Information storage based on relative movement between record carrier and transducer
- G11B 27/30 - Indexing; Addressing; Timing or synchronising; Measuring tape travel by using information detectable on the record carrier by using information signals recorded by the same method as the main recording on the same track as the main recording
Patent holdings for IPC class G11B 27/30
Total number of patents in this class: 602
10-year publication summary
|
103
|
94
|
86
|
69
|
66
|
50
|
33
|
28
|
23
|
5
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Google LLC | 38759 |
37 |
| GoPro, Inc. | 1915 |
35 |
| Sony Corporation | 32931 |
29 |
| Amazon Technologies, Inc. | 24422 |
16 |
| Mitsubishi Electric Corporation | 43934 |
14 |
| Maxell, Ltd. | 2533 |
14 |
| Thomson Licensing | 4027 |
13 |
| Yieldbot Inc. | 56 |
12 |
| Apple Inc. | 50209 |
10 |
| International Business Machines Corporation | 60644 |
10 |
| Canon Inc. | 36841 |
10 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
| Samsung Electronics Co., Ltd. | 131630 |
9 |
| Maxell Holdings, Ltd. | 1422 |
9 |
| Qualcomm Incorporated | 76576 |
8 |
| AT&T Intellectual Property I, L.P. | 9886 |
8 |
| DivX, LLC | 274 |
7 |
| Netflix, Inc. | 944 |
7 |
| Open Text SA ULC | 665 |
7 |
| Avago Technologies International Sales Pte. Limited | 9260 |
7 |
| Other owners | 330 |