- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 32/318 - Preparation characterised by the starting materials
Patent holdings for IPC class C01B 32/318
Total number of patents in this class: 371
10-year publication summary
|
11
|
14
|
26
|
38
|
57
|
34
|
47
|
53
|
42
|
28
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carbon Technology Holdings, LLC | 231 |
46 |
| Kuraray Co., Ltd. | 3589 |
32 |
| Stora Enso Oyj | 1648 |
16 |
| Sony Corporation | 30208 |
11 |
| Group14 Technologies, Inc. | 120 |
6 |
| Toyo Tanso Co., Ltd. | 218 |
5 |
| Torrgas Technology B.V. | 15 |
5 |
| Lawrence Livermore National Security, LLC | 1972 |
4 |
| CPC Corporation, Taiwan | 74 |
4 |
| Nippon Paper Industries Co., Ltd. | 848 |
4 |
| Carbonip Technologies Inc. | 8 |
4 |
| Dow Global Technologies LLC | 10930 |
3 |
| King Fahd University of Petroleum and Minerals | 1569 |
3 |
| Living Ink Technologies, LLC | 10 |
3 |
| Norit Americas Inc. | 10 |
3 |
| Osaka Gas Chemicals Co., Ltd. | 144 |
3 |
| DESOTEC, naamloze vennootschap | 46 |
3 |
| ARQ IP Limited | 43 |
3 |
| Atlas Power Technologies Inc. | 40 |
3 |
| Toyobo MC Corporation | 529 |
3 |
| Other owners | 207 |