- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/39 - Apparatus for the preparation thereof
Patent holdings for IPC class C01B 32/39
Total number of patents in this class: 44
10-year publication summary
|
1
|
2
|
2
|
5
|
6
|
3
|
5
|
5
|
10
|
3
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carbon Technology Holdings, LLC | 213 |
9 |
| Advanced Organic Methods Inc. | 3 |
3 |
| China Petroleum & Chemical Corporation | 1901 |
2 |
| SunCor Energy Inc. | 743 |
2 |
| Ecap BioEnergy, LLC | 9 |
2 |
| Concord Blue Patent GmbH | 6 |
2 |
| Bygen Pty Ltd | 8 |
2 |
| Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd. | 97 |
2 |
| Biochar Now, LLC | 22 |
1 |
| Blucher GmbH | 177 |
1 |
| Ohio University | 366 |
1 |
| Southeast University | 1420 |
1 |
| Titan Clean Energy Projects Corporation | 16 |
1 |
| The University of Adelaide | 157 |
1 |
| Valmet AB | 508 |
1 |
| Zhejiang University | 3162 |
1 |
| AL Chalabi, Rifat | 3 |
1 |
| Azamour Investment Corporation Incorporated | 4 |
1 |
| National Research Council | 4 |
1 |
| Tigerstone Technologies Limited | 1 |
1 |
| Other owners | 8 |