- 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: 432
10-year publication summary
|
25
|
31
|
32
|
25
|
19
|
26
|
29
|
37
|
40
|
16
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Stamicarbon B.V. | 292 |
27 |
| Johnson Matthey Public Limited Company | 1844 |
13 |
| ThyssenKrupp AG | 3276 |
11 |
| Saipem S.p.A. | 515 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8685 |
7 |
| Sumitomo Electric Industries, Ltd. | 15414 |
7 |
| ThyssenKrupp Industrial Solutions AG | 632 |
7 |
| Cummins IP, Inc. | 156 |
6 |
| General Electric Technology GmbH | 1371 |
6 |
| Alstom Technology Ltd | 1109 |
5 |
| The United States of America as represented by the Secretary of the Army | 1209 |
5 |
| Steen Research, LLC | 17 |
5 |
| Uhde Fertilizer Technology B.V. | 15 |
5 |
| The United States of America, as represented by the Secretary of Agriculture | 1095 |
5 |
| Jiangnan Environmental Technology Inc. | 18 |
4 |
| Nuorganics LLC | 18 |
4 |
| BASF Mobile Emissions Catalysts LLC | 398 |
4 |
| Shell Internationale Research Maatschappij B.V. | 3551 |
3 |
| Uop LLC | 4236 |
3 |
| 8 Rivers Capital, LLC | 252 |
3 |
| Other owners | 292 |