- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F17C - Vessels for containing or storing compressed, liquefied, or solidified gasesfixed-capacity gas-holdersfilling vessels with, or discharging from vessels, compressed, liquefied, or solidified gases
- F17C 9/04 - Recovery of thermal energy
Patent holdings for IPC class F17C 9/04
Total number of patents in this class: 244
10-year publication summary
|
12
|
16
|
22
|
12
|
21
|
15
|
24
|
23
|
15
|
2
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gaztransport et Technigaz | 608 |
25 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4042 |
11 |
| Hanwha Ocean Co., Ltd. | 135 |
9 |
| Wartsila Finland Oy | 753 |
7 |
| 8 Rivers Capital, LLC | 234 |
6 |
| Air Products and Chemicals, Inc. | 1462 |
5 |
| Burckhardt Compression AG | 124 |
5 |
| Mitsubishi Heavy Industries, Ltd. | 9010 |
4 |
| Highview Enterprises Limited | 47 |
4 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2832 |
4 |
| Nxn Systems Inc. | 7 |
4 |
| Siemens AG | 24237 |
3 |
| Chart Inc. | 131 |
3 |
| ExxonMobil Upstream Research Company | 2340 |
3 |
| Fluor Technologies Corporation | 369 |
3 |
| Reflect Scientific, Inc. | 29 |
3 |
| Cryo PUR | 22 |
3 |
| Speclipse, Inc. | 40 |
3 |
| Mitsubishi Heavy Industries Marine Machinery & Equipment Co., Ltd. | 84 |
3 |
| Newpolygen Technologies Ltd. | 3 |
3 |
| Other owners | 133 |