- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25J - Liquefaction, solidification, or separation of gases or gaseous mixtures by pressure and cold treatment
- F25J 3/06 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by partial condensation
Patent holdings for IPC class F25J 3/06
Total number of patents in this class: 661
10-year publication summary
|
50
|
48
|
45
|
39
|
32
|
27
|
32
|
42
|
63
|
25
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4117 |
108 |
| Shell Internationale Research Maatschappij B.V. | 3403 |
26 |
| ExxonMobil Upstream Research Company | 2305 |
19 |
| Saudi Arabian Oil Company | 14235 |
18 |
| U.S. Bank Trust Co National Association | 75 |
15 |
| 1304338 Alberta Ltd. | 90 |
14 |
| 1304342 Alberta Ltd. | 89 |
14 |
| Aramco Services Company | 4195 |
14 |
| Linde Aktiengesellschaft | 1421 |
14 |
| Air Products and Chemicals, Inc. | 1471 |
12 |
| BP Alternative Energy International Limited | 22 |
12 |
| Technip France | 682 |
10 |
| Alstom Technology Ltd | 1045 |
9 |
| EnFlex, Inc. | 13 |
9 |
| Shell Oil Company | 2071 |
8 |
| Gaztransport et Technigaz | 629 |
8 |
| Twister B.V. | 38 |
8 |
| Linde GmbH | 1360 |
8 |
| Uop LLC | 4393 |
7 |
| Chart Energy & Chemicals, Inc. | 78 |
7 |
| Other owners | 321 |