- All sections
- C - Chemistrymetallurgy
- C01B - Non-metallic elementscompounds thereof
- C01B 17/76 - Preparation by contact processes
Patent holdings for IPC class C01B 17/76
Total number of patents in this class: 78
10-year publication summary
|
5
|
4
|
3
|
5
|
2
|
9
|
4
|
1
|
2
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Topsoe A/S | 1022 |
11 |
| Haldor Topsøe A/S | 637 |
10 |
| Chemetics Inc. | 68 |
7 |
| Bayer Intellectual Property GmbH | 2390 |
4 |
| MECS, Inc. | 63 |
3 |
| Keyon Process Co., Ltd | 10 |
3 |
| China Petroleum & Chemical Corporation | 2102 |
2 |
| Outotec (Finland) Oy | 456 |
2 |
| Sinopec Nanjing Research Institute of Chemical Industry Co., Ltd. | 23 |
2 |
| WAINWRIGHT, David | 12 |
2 |
| Metso Metals Oy | 222 |
2 |
| BASF SE | 21185 |
1 |
| Shell Oil Company | 2084 |
1 |
| Air Products and Chemicals, Inc. | 1472 |
1 |
| Albemarle Corporation | 485 |
1 |
| Applied Technology Limited Partnership | 6 |
1 |
| Bayer Technology Services GmbH | 159 |
1 |
| Chiyoda Corporation | 420 |
1 |
| Cppe Carbon Process & Plant Engineering S.A. | 17 |
1 |
| CRI ehf | 5 |
1 |
| Other owners | 21 |