- All sections
- G - Physics
- G05D - Systems for controlling or regulating non-electric variables
- G05D 21/00 - Control of chemical or physico-chemical variables, e.g. pH-value
Patent holdings for IPC class G05D 21/00
Total number of patents in this class: 109
10-year publication summary
|
6
|
5
|
7
|
1
|
9
|
5
|
8
|
14
|
6
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Energy, Inc. | 1685 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3790 |
3 |
| Covestro Deutschland AG | 2831 |
3 |
| System Instruments Co., Ltd. | 25 |
3 |
| Quanata, LLC | 387 |
3 |
| BASF SE | 21303 |
2 |
| Cameron International Corporation | 1368 |
2 |
| INEOS Europe AG | 212 |
2 |
| Kebony ASA | 17 |
2 |
| Kurita Water Industries Ltd. | 1283 |
2 |
| NoseOption AB | 19 |
2 |
| NOVA Chemicals (International) S.A. | 797 |
2 |
| Sartorius Stedim Biotech GmbH | 873 |
2 |
| ThioSolv, LLC | 23 |
2 |
| Universidad Politecnica de Valencia | 557 |
2 |
| BlueOwl, LLC | 56 |
2 |
| Cytiva Sweden AB | 788 |
2 |
| Umicore Battery Materials Finland Oy | 34 |
2 |
| International Business Machines Corporation | 62621 |
1 |
| Toyota Motor Corporation | 35680 |
1 |
| Other owners | 66 |