- All sections
- G - Physics
- G01L - Measuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure
- G01L 21/02 - Vacuum gauges having a compression chamber in which gas, whose pressure is to be measured, is compressed
Patent holdings for IPC class G01L 21/02
Total number of patents in this class: 45
10-year publication summary
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4
|
2
|
2
|
4
|
1
|
1
|
2
|
3
|
0
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Dolby Laboratories Licensing Corporation | 4135 |
3 |
| National Research Council of Canada | 1547 |
3 |
| INFICON Holding AG | 180 |
2 |
| Qualcomm Incorporated | 85833 |
1 |
| Baker Hughes Incorporated | 5274 |
1 |
| LG Electronics Inc. | 73344 |
1 |
| Pratt & Whitney Canada Corp. | 4793 |
1 |
| Nokia Corporation | 5616 |
1 |
| GM Global Technology Operations LLC | 15095 |
1 |
| Koninklijke Philips N.V. | 24767 |
1 |
| Applied Materials, Inc. | 18746 |
1 |
| Alcatel-Lucent USA Inc. | 554 |
1 |
| Tokyo Electron Limited | 12762 |
1 |
| Motorola, Inc. | 2058 |
1 |
| Shenzhen China Star Optoelectronics Technology Co., Ltd. | 8476 |
1 |
| Cochlear Limited | 1888 |
1 |
| DSP Group Ltd. | 168 |
1 |
| Epsis AS | 6 |
1 |
| III Holdings 6, LLC | 62 |
1 |
| Katholieke Universitiet Leuven | 1 |
1 |
| Other owners | 20 |