- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 3/47 - Air-gap windings, i.e. iron-free windings
Patent holdings for IPC class H02K 3/47
Total number of patents in this class: 394
10-year publication summary
|
22
|
40
|
53
|
45
|
34
|
55
|
38
|
38
|
21
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Denso Corporation | 26008 |
28 |
| Infinitum Electric Inc. | 94 |
17 |
| AeroVironment, Inc. | 590 |
11 |
| Beckhoff Automation GmbH | 559 |
9 |
| Maxon International AG | 108 |
9 |
| Robert Bosch GmbH | 44459 |
8 |
| Linear Labs, Inc. | 75 |
8 |
| Siemens AG | 23946 |
7 |
| Delta Electronics, Inc. | 2895 |
7 |
| ECP Entwicklungsgesellschaft mbH | 259 |
7 |
| Coreless Motor Co., Ltd. | 18 |
7 |
| Medtronic Xomed, Inc. | 543 |
6 |
| Etel S.A. | 102 |
6 |
| CHE-Motor AG | 13 |
6 |
| Rolls-Royce Deutschland Ltd & Co KG | 870 |
5 |
| Hagnesia AB | 11 |
5 |
| Exedy Clutch Europe Limited | 20 |
5 |
| General Electric Company | 14047 |
4 |
| General Electric Renovables España, S.L. | 315 |
4 |
| Alva Industries AS | 18 |
4 |
| Other owners | 231 |