- All sections
- C - Chemistrymetallurgy
- C01C - Ammoniacyanogencompounds thereof
- C01C 1/04 - Preparation of ammonia by synthesis
Patent holdings for IPC class C01C 1/04
Total number of patents in this class: 1428
10-year publication summary
|
69
|
91
|
93
|
77
|
87
|
103
|
139
|
159
|
180
|
122
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Casale SA | 641 |
126 |
| Topsoe A/S | 1083 |
93 |
| ThyssenKrupp AG | 3343 |
71 |
| ThyssenKrupp Uhde GmbH | 391 |
40 |
| Japan Science and Technology Agency | 1207 |
38 |
| Tokyo Institute of Technology | 1301 |
36 |
| ThyssenKrupp Industrial Solutions AG | 630 |
34 |
| Haldor Topsøe A/S | 630 |
34 |
| Kellogg Brown & Root LLC | 518 |
28 |
| Yara International ASA | 910 |
24 |
| Linde GmbH | 1398 |
22 |
| The University of Tokyo | 4413 |
19 |
| SABIC Global Technologies B.V. | 4636 |
16 |
| Stamicarbon B.V. | 324 |
15 |
| Tsubame Bhb Co., Ltd. | 15 |
15 |
| Idemitsu Kosan Co., Ltd. | 4293 |
14 |
| National Institute of Advanced Industrial Science and Technology | 3793 |
14 |
| Nuovo Pignone Tecnologie S.r.l. | 1121 |
14 |
| Johnson Matthey Davy Technologies Limited | 543 |
13 |
| Starfire Energy | 25 |
13 |
| Other owners | 749 |