- All sections
- C - Chemistrymetallurgy
- C01C - Ammoniacyanogencompounds thereof
- C01C 1/12 - Separation of ammonia from gases and vapours
Patent holdings for IPC class C01C 1/12
Total number of patents in this class: 126
10-year publication summary
|
8
|
7
|
11
|
6
|
7
|
5
|
12
|
9
|
18
|
8
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bechtel Energy Technologies & Solutions, Inc. | 70 |
10 |
| Saipem S.p.A. | 515 |
5 |
| Stamicarbon B.V. | 292 |
5 |
| ExxonMobil Research And Engineering Company | 2582 |
4 |
| Air Products and Chemicals, Inc. | 1417 |
4 |
| Yara International ASA | 843 |
4 |
| Casale SA | 609 |
3 |
| General Electric Technology GmbH | 1371 |
3 |
| JNC Corporation | 1552 |
3 |
| SABIC Global Technologies B.V. | 4330 |
3 |
| Topsoe A/S | 891 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
2 |
| National Institute of Advanced Industrial Science and Technology | 3797 |
2 |
| Gas Technology Institute | 354 |
2 |
| Innovator Energy LLC | 64 |
2 |
| INVISTA North America S.a.r.l. | 176 |
2 |
| INVISTA Technologies S.a.r.l. | 416 |
2 |
| Japan Pionics Co., Ltd. | 7 |
2 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3967 |
2 |
| Nippon Yusen Kabushiki Kaisha | 157 |
2 |
| Other owners | 61 |