- All sections
- G - Physics
- G01L - Measuring force, stress, torque, work, mechanical power, mechanical efficiency, or fluid pressure
- G01L 21/22 - Vacuum gauges by measuring variation of frictional resistance of gases using resonance effects of a vibrating bodyVacuum gauges of the Klumb type
Patent holdings for IPC class G01L 21/22
Total number of patents in this class: 13
10-year publication summary
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| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| King Abdullah University of Science and Technology | 1834 |
3 |
| Samsung Electronics Co., Ltd. | 153357 |
1 |
| Panasonic Corporation | 19739 |
1 |
| Robert Bosch GmbH | 43526 |
1 |
| Oracle America, Inc. | 2669 |
1 |
| Epcos AG | 663 |
1 |
| Carl Zeiss SMT GmbH | 3206 |
1 |
| Deutsches Elektronen-Synchrotron DESY | 44 |
1 |
| Universitat Hamburg | 90 |
1 |
| Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | 6108 |
1 |
| Technische Universität Chemnitz | 43 |
1 |
| Other owners | 0 |