- All sections
- H - Electricity
- H02K - Dynamo-electric machines
- H02K 3/44 - Protection against moisture or chemical attackWindings specially adapted for operation in liquid or gas
Patent holdings for IPC class H02K 3/44
Total number of patents in this class: 141
10-year publication summary
|
5
|
16
|
14
|
11
|
8
|
6
|
11
|
12
|
9
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nidec Corporation | 2723 |
8 |
| Mitsubishi Electric Corporation | 47240 |
7 |
| Zero e Technologies, LLC | 11 |
7 |
| Denso Corporation | 24933 |
6 |
| Panasonic Corporation | 19909 |
5 |
| Panasonic Intellectual Property Management Co., Ltd. | 32795 |
5 |
| Persimmon Technologies, Corp. | 157 |
5 |
| Halliburton Energy Services, Inc. | 21109 |
4 |
| Nidec Sankyo Corporation | 1075 |
4 |
| TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 12630 |
4 |
| Robert Bosch GmbH | 43187 |
3 |
| Kobelco Construction Machinery Co., Ltd. | 1169 |
3 |
| Volkswagen AG | 7386 |
3 |
| Schlumberger Technology Corporation | 11202 |
2 |
| Blue Robotics Inc. | 12 |
2 |
| IHI Corporation | 3485 |
2 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2864 |
2 |
| Kabushiki Kaisha Yaskawa Denki | 1470 |
2 |
| Sanden Corporation | 982 |
2 |
| Taco Italia S.r.l. | 12 |
2 |
| Other owners | 63 |