- All sections
- E - Fixed constructions
- E04H - Buildings or like structures for particular purposesswimming or splash baths or poolsmastsfencingtents or canopies, in general
- E04H 7/18 - Containers for fluids or gasesSupports therefor mainly of concrete, e.g. reinforced concrete, or other stone-like material
Patent holdings for IPC class E04H 7/18
Total number of patents in this class: 83
10-year publication summary
|
8
|
8
|
8
|
1
|
6
|
6
|
8
|
2
|
9
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| IHI Corporation | 3535 |
19 |
| Concept Environmental Services Pty Ltd | 4 |
3 |
| Preload Cryogenics, LLC | 19 |
3 |
| IHI Plant Services Corporation | 24 |
3 |
| Drossler GmbH Umwelttechnik | 5 |
2 |
| GE-Hitachi Nuclear Energy Americas LLC | 454 |
2 |
| Saudi Arabian Oil Company | 14248 |
2 |
| Publichnoe Aktsionernoe Obschestvo "Gazprom" | 26 |
2 |
| Aker Carbon Capture Norway AS | 49 |
2 |
| Entacon Pty Ltd | 11 |
2 |
| VRB Energy Inc. | 21 |
2 |
| Halliburton Energy Services, Inc. | 21320 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 9139 |
1 |
| Chevron U.S.A. Inc. | 4136 |
1 |
| Aker Engineering & Technology AS | 33 |
1 |
| Aramco Services Company | 4196 |
1 |
| Caldwell Tanks, Inc. | 6 |
1 |
| China Nuclear Power Engineering Co., Ltd. | 296 |
1 |
| Crom, LLC | 13 |
1 |
| Dutchland, Inc. | 2 |
1 |
| Other owners | 32 |