- All sections
- G - Physics
- G01N - Investigating or analysing materials by determining their chemical or physical properties
- G01N 21/81 - Indicating humidity
Patent holdings for IPC class G01N 21/81
Total number of patents in this class: 140
10-year publication summary
|
9
|
10
|
12
|
11
|
13
|
14
|
9
|
10
|
3
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kimberly-clark Worldwide, Inc. | 5448 |
5 |
| Kyodo Printing Co., Ltd. | 151 |
5 |
| Healthy.io Ltd | 81 |
4 |
| Samsung Electronics Co., Ltd. | 147334 |
3 |
| 3m Innovative Properties Company | 17812 |
3 |
| The Boeing Company | 20098 |
3 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3992 |
3 |
| Siemens Healthcare Diagnostics Inc. | 2077 |
3 |
| Conopco, Inc. | 4986 |
2 |
| The Regents of the University of California | 20035 |
2 |
| International Business Machines Corporation | 61402 |
2 |
| Carrier Corporation | 4292 |
2 |
| Fraunhofer-Gesellschaft zur Foerderung der angewandten Forschung e.V. | 4989 |
2 |
| Bartec Benke GmbH | 14 |
2 |
| Boveda Inc. | 111 |
2 |
| Dräger Safety AG & Co. KGaA | 439 |
2 |
| Ewha University-industry Collaboration Foundation | 732 |
2 |
| Flex Ltd. | 222 |
2 |
| IUCF-HYU (Industry-University Cooperation Foundation Hanyang University) | 1412 |
2 |
| Korea Research Institute of Chemical Technology | 1400 |
2 |
| Other owners | 87 |