- All sections
- H - Electricity
- H02P - Control or regulation of electric motors, electric generators or dynamo-electric converters; controlling transformers, reactors or choke coils
- H02P 21/14 - Estimation or adaptation of machine parameters, e.g. flux, current or voltage
Patent holdings for IPC class H02P 21/14
Total number of patents in this class: 867
10-year publication summary
78
|
59
|
50
|
57
|
60
|
59
|
68
|
80
|
95
|
30
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
48 |
Denso Corporation | 23338 |
34 |
Robert Bosch GmbH | 40953 |
29 |
Siemens AG | 24990 |
14 |
Nissan Motor Co., Ltd. | 12249 |
14 |
Nidec Corporation | 2579 |
13 |
Hyundai Motor Company | 19021 |
11 |
Kabushiki Kaisha Yaskawa Denki | 1468 |
11 |
SEW-EURODRIVE GmbH & Co. KG | 1816 |
11 |
Toshiba Mitsubishi-Electric Industrial Systems Corporation | 1583 |
11 |
Lsis Co., Ltd. | 834 |
10 |
RENAULT s.a.s. | 5674 |
10 |
Schneider Toshiba Inverter Europe SAS | 126 |
10 |
Toshiba Corporation | 12017 |
9 |
ABB Schweiz AG | 6321 |
9 |
Hitachi Astemo, Ltd. | 5618 |
9 |
LG Electronics Inc. | 69257 |
8 |
Texas Instruments Incorporated | 19376 |
8 |
GM Global Technology Operations LLC | 13620 |
8 |
Wisconsin Alumni Research Foundation | 3774 |
8 |
Other owners | 582 |