- All sections
- G - Physics
- G01R - Measuring electric variablesmeasuring magnetic variables
- G01R 31/25 - Testing of vacuum tubes
Patent holdings for IPC class G01R 31/25
Total number of patents in this class: 21
10-year publication summary
|
4
|
2
|
1
|
3
|
0
|
0
|
0
|
2
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Grosch LLC | 4 |
2 |
| KBO Dynamics International LTD. | 7 |
2 |
| The Boeing Company | 20090 |
1 |
| Texas Instruments Incorporated | 19456 |
1 |
| Koninklijke Philips N.V. | 24789 |
1 |
| Tokyo Electron Limited | 12795 |
1 |
| Bender GmbH & Co. KG | 124 |
1 |
| Bristol, Inc., d/b/a Remote Automation Solutions | 99 |
1 |
| Delta Electronics (Shanghai) Co., Ltd. | 723 |
1 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2752 |
1 |
| Orange Music Electronic Company Limited | 4 |
1 |
| Schneider Electric Industries SAS | 1495 |
1 |
| SEG Automotive Germany GmbH | 205 |
1 |
| Orange Music Electronics Company Limited | 1 |
1 |
| Mohr and Associates | 24 |
1 |
| Eaton Intelligent Power Limited | 6006 |
1 |
| Communications & Power Industries International Inc | 3 |
1 |
| Siemens Healthineers AG | 6708 |
1 |
| GE Precision Healthcare LLC | 5486 |
1 |
| Other owners | 0 |