- All sections
- C - Chemistrymetallurgy
- C01C - Ammoniacyanogencompounds thereof
- C01C 1/02 - Preparation or separation of ammonia
Patent holdings for IPC class C01C 1/02
Total number of patents in this class: 413
10-year publication summary
|
22
|
15
|
20
|
20
|
22
|
36
|
26
|
48
|
46
|
35
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bechtel Energy Technologies & Solutions, Inc. | 78 |
11 |
| SABIC Global Technologies B.V. | 4632 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 9252 |
7 |
| National Institute of Advanced Industrial Science and Technology | 3791 |
7 |
| Sumitomo Seika Chemicals Co., Ltd. | 1057 |
7 |
| Kellogg Brown & Root LLC | 520 |
6 |
| Yuanchu Technology (Beijing) Co., Ltd. | 27 |
6 |
| Anaergia Inc. | 106 |
5 |
| Topsoe A/S | 1080 |
5 |
| Siemens AG | 23934 |
4 |
| Casale SA | 638 |
4 |
| Gas Technology Institute | 331 |
4 |
| Kabushiki Kaisha Toyota Chuo Kenkyusho | 709 |
4 |
| Research Institute of Industrial Science & Technology | 574 |
4 |
| ThyssenKrupp AG | 3333 |
4 |
| Amminex A/S | 15 |
4 |
| Diality Inc. | 78 |
4 |
| Sure Champion Investment Limited | 50 |
4 |
| Universidade Estadual de Campinas—unicamp | 4 |
4 |
| The Boeing Company | 20217 |
3 |
| Other owners | 306 |