- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/74 - Preparation
Patent holdings for IPC class C01B 17/74
Total number of patents in this class: 141
10-year publication summary
|
7
|
7
|
10
|
4
|
3
|
10
|
9
|
15
|
17
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ThyssenKrupp AG | 3280 |
9 |
| ThyssenKrupp Industrial Solutions AG | 631 |
9 |
| Haldor Topsøe A/S | 659 |
7 |
| Chemetics Inc. | 63 |
6 |
| MECS, Inc. | 75 |
6 |
| Topsoe A/S | 891 |
6 |
| Totalenergies Onetech | 1313 |
4 |
| Altmerge, LLC | 9 |
3 |
| JFE Steel Corporation | 6827 |
3 |
| Johnson Matthey Davy Technologies Limited | 273 |
3 |
| Muddy River Technologies Inc. | 13 |
3 |
| Nihon Kanki Industry Co., Ltd. | 6 |
3 |
| Messer Industries USA, Inc. | 120 |
3 |
| D-crbn BV | 12 |
3 |
| Metso Metals Oy | 206 |
3 |
| Shell Internationale Research Maatschappij B.V. | 3551 |
2 |
| Shell Oil Company | 2141 |
2 |
| Thermo Fisher Scientific Inc. | 211 |
2 |
| China Petroleum & Chemical Corporation | 1894 |
2 |
| Chiyoda Corporation | 396 |
2 |
| Other owners | 60 |