- All sections
- G - Physics
- G01R - Measuring electric variables; measuring magnetic variables
- G01R 31/34 - Testing dynamo-electric machines
Patent holdings for IPC class G01R 31/34
Total number of patents in this class: 1848
10-year publication summary
|
143
|
145
|
139
|
167
|
165
|
164
|
170
|
174
|
136
|
51
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mitsubishi Electric Corporation | 43934 |
61 |
| Siemens AG | 24990 |
52 |
| ABB Schweiz AG | 6321 |
51 |
| Tatsumi Ryoki Co., Ltd | 94 |
46 |
| Robert Bosch GmbH | 40953 |
44 |
| GE Infrastructure Technology, LLC | 5873 |
29 |
| Hitachi, Ltd. | 16452 |
26 |
| FANUC Corporation | 5803 |
23 |
| Texas Instruments Incorporated | 19376 |
21 |
| GM Global Technology Operations LLC | 13620 |
21 |
| Toshiba Mitsubishi-Electric Industrial Systems Corporation | 1583 |
21 |
| Siemens Energy, Inc. | 1770 |
20 |
| Toshiba Corporation | 12017 |
19 |
| Denso Corporation | 23338 |
19 |
| AAC Acoustic Technologies (Shenzhen) Co., Ltd. | 1827 |
17 |
| General Electric Technology GmbH | 1657 |
17 |
| Schweitzer Engineering Laboratories, Inc. | 920 |
17 |
| Hyundai Motor Company | 19021 |
16 |
| Eaton Intelligent Power Limited | 6113 |
16 |
| General Electric Company | 18133 |
14 |
| Other owners | 1298 |