- 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: 161
10-year publication summary
|
7
|
10
|
4
|
3
|
10
|
11
|
15
|
18
|
14
|
14
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ThyssenKrupp AG | 3333 |
9 |
| ThyssenKrupp Industrial Solutions AG | 630 |
9 |
| Haldor Topsøe A/S | 629 |
6 |
| Chemetics Inc. | 69 |
5 |
| MECS, Inc. | 63 |
5 |
| Topsoe A/S | 1080 |
5 |
| Peregrine Hydrogen Inc. | 18 |
5 |
| Innovator Energy LLC | 80 |
4 |
| Altmerge, LLC | 9 |
3 |
| JFE Steel Corporation | 7675 |
3 |
| Johnson Matthey Davy Technologies Limited | 540 |
3 |
| Muddy River Technologies Inc. | 11 |
3 |
| Nihon Kanki Industry Co., Ltd. | 6 |
3 |
| Messer Industries USA, Inc. | 126 |
3 |
| D-crbn BV | 14 |
3 |
| Rtx BBN Technologies, Inc. | 330 |
3 |
| Shell Internationale Research Maatschappij B.V. | 3378 |
2 |
| Shell Oil Company | 2054 |
2 |
| Thermo Fisher Scientific Inc. | 220 |
2 |
| China Petroleum & Chemical Corporation | 2190 |
2 |
| Other owners | 81 |