- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/942 - Calcium carbide
Patent holdings for IPC class C01B 32/942
Total number of patents in this class: 34
10-year publication summary
|
3
|
1
|
1
|
2
|
3
|
1
|
3
|
5
|
2
|
7
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 10513 |
7 |
| The Doshisha | 229 |
7 |
| Denka Company Limited | 2754 |
5 |
| West Virginia University Research Corporation | 17 |
3 |
| BASF SE | 21320 |
1 |
| Shell Internationale Research Maatschappij B.V. | 3391 |
1 |
| Beijing University of Chemical Technology | 334 |
1 |
| Fels-Werke GmbH | 30 |
1 |
| Shinko Sangyo Co., Ltd. | 19 |
1 |
| University of Science and Technology Beijing | 314 |
1 |
| Zhengzhou University | 148 |
1 |
| Sinocalci Corporation | 3 |
1 |
| Shell USA, Inc. | 1341 |
1 |
| Dioxycle | 83 |
1 |
| Vibrantz Corporation | 89 |
1 |
| Myno Carbon Corp. | 2 |
1 |
| Other owners | 0 |