- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 564
10-year publication summary
|
53
|
39
|
50
|
48
|
45
|
38
|
32
|
26
|
33
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
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 | 3515 |
77 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
26 |
| Air Products and Chemicals, Inc. | 1448 |
19 |
| ExxonMobil Upstream Research Company | 2525 |
19 |
| Linde Aktiengesellschaft | 1600 |
18 |
| Saudi Arabian Oil Company | 11322 |
17 |
| U.S. Bank Trust Co National Association | 78 |
15 |
| L'Air Liquide, Societe Anonyme pour L'etude et L'exploitation des Proced ES Georges Claude | 296 |
14 |
| Aramco Services Company | 3504 |
13 |
| BP Alternative Energy International Limited | 22 |
12 |
| Twister B.V. | 49 |
12 |
| 1304338 Alberta Ltd. | 87 |
11 |
| 1304342 Alberta Ltd. | 85 |
11 |
| EnFlex, Inc. | 13 |
11 |
| Technip France | 737 |
10 |
| Shell Oil Company | 2196 |
9 |
| Alstom Technology Ltd | 1196 |
9 |
| Praxair Technology, Inc. | 1367 |
7 |
| Linde GmbH | 1122 |
7 |
| Uop LLC | 4083 |
6 |
| Other owners | 241 |