- 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: 103
10-year publication summary
|
4
|
6
|
5
|
7
|
1
|
9
|
5
|
6
|
13
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Siemens Energy, Inc. | 1688 |
3 |
| National Institute of Advanced Industrial Science and Technology | 3803 |
3 |
| Covestro Deutschland AG | 2747 |
3 |
| System Instruments Co., Ltd. | 25 |
3 |
| ThioSolv, LLC | 23 |
3 |
| Cameron International Corporation | 1332 |
2 |
| INEOS Europe AG | 204 |
2 |
| Kebony ASA | 17 |
2 |
| Kurita Water Industries Ltd. | 1194 |
2 |
| NOVA Chemicals (International) S.A. | 767 |
2 |
| Sartorius Stedim Biotech GmbH | 831 |
2 |
| Universidad Politecnica de Valencia | 534 |
2 |
| BlueOwl, LLC | 57 |
2 |
| Cytiva Sweden AB | 764 |
2 |
| Quanata, LLC | 331 |
2 |
| BASF SE | 20933 |
1 |
| International Business Machines Corporation | 61228 |
1 |
| Toyota Motor Corporation | 32116 |
1 |
| ExxonMobil Research And Engineering Company | 2573 |
1 |
| Centre National de La Recherche Scientifique | 10418 |
1 |
| Other owners | 63 |