- All sections
- B - Performing operationstransporting
- B01D - Separation
- B01D 53/58 - Ammonia
Patent holdings for IPC class B01D 53/58
Total number of patents in this class: 478
10-year publication summary
|
31
|
32
|
25
|
19
|
26
|
30
|
37
|
42
|
27
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stamicarbon B.V. | 319 |
27 |
| Johnson Matthey Public Limited Company | 1767 |
13 |
| ThyssenKrupp AG | 3423 |
11 |
| Saipem S.p.A. | 529 |
9 |
| Mitsubishi Heavy Industries, Ltd. | 9115 |
8 |
| HD Korea Shipbuilding ＆ Offshore Engineering Co., Ltd. | 114 |
8 |
| Sumitomo Electric Industries, Ltd. | 16305 |
7 |
| ThyssenKrupp Industrial Solutions AG | 630 |
7 |
| Cummins IP, Inc. | 155 |
6 |
| General Electric Technology GmbH | 1336 |
6 |
| Steen Research, LLC | 19 |
6 |
| Alstom Technology Ltd | 1045 |
5 |
| Uop LLC | 4393 |
5 |
| The United States of America as represented by the Secretary of the Army | 1256 |
5 |
| Casale SA | 633 |
5 |
| Uhde Fertilizer Technology B.V. | 15 |
5 |
| The United States of America, as represented by the Secretary of Agriculture | 1153 |
5 |
| Yara International ASA | 901 |
5 |
| Jiangnan Environmental Technology Inc. | 22 |
5 |
| HD Hyundai Heavy Industries Co., Ltd. | 94 |
5 |
| Other owners | 325 |