- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F17C - Vessels for containing or storing compressed, liquefied, or solidified gases; fixed-capacity gas-holders; filling vessels with, or discharging from vessels, compressed, liquefied, or solidified gases
- F17C 7/04 - Discharging liquefied gases with change of state, e.g. vaporisation
Patent holdings for IPC class F17C 7/04
Total number of patents in this class: 508
10-year publication summary
31
|
40
|
41
|
57
|
42
|
30
|
37
|
36
|
40
|
8
|
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 |
22 |
Westport Fuel Systems Canada Inc. | 246 |
14 |
Hyundai Heavy Industries Co., Ltd. | 281 |
12 |
Praxair Technology, Inc. | 1367 |
12 |
Algas-SDI International LLC | 15 |
9 |
Cryostar SAS | 110 |
9 |
U.S. Bank Trust Company, National Association, AS The Notes Collateral Agent | 72 |
9 |
General Electric Company | 18133 |
8 |
Chart Inc. | 134 |
8 |
National Institute of Clean-and-low-carbon Energy | 122 |
8 |
Volvo Truck Corporation | 2764 |
8 |
China Energy Investment Corporation Limited | 127 |
8 |
Linde Aktiengesellschaft | 1600 |
7 |
Samsung Heavy Ind. Co., Ltd. | 240 |
7 |
Rtx Corporation | 8674 |
7 |
Shell Internationale Research Maatschappij B.V. | 3792 |
6 |
Westport Power Inc. | 131 |
6 |
Shell Oil Company | 2196 |
5 |
Air Products and Chemicals, Inc. | 1448 |
5 |
RAI Strategic Holdings, Inc. | 1026 |
5 |
Other owners | 333 |