- All sections
- E - Fixed constructions
- E04H - Buildings or like structures for particular purposesswimming or splash baths or poolsmastsfencingtents or canopies, in general
- E04H 7/20 - Prestressed constructions
Patent holdings for IPC class E04H 7/20
Total number of patents in this class: 36
10-year publication summary
|
4
|
3
|
3
|
6
|
5
|
3
|
0
|
4
|
3
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Preload Cryogenics, LLC | 20 |
10 |
| IHI Corporation | 3449 |
7 |
| IFP Energies Nouvelles | 2952 |
3 |
| Chevron U.S.A. Inc. | 3984 |
2 |
| Crom, LLC | 13 |
2 |
| Soletanche Freyssinet | 481 |
2 |
| Go Team CCR LLC | 14 |
2 |
| Entacon Pty Ltd | 12 |
2 |
| Drossler GmbH Umwelttechnik | 5 |
1 |
| Kajima Corporation | 85 |
1 |
| Thiess Pty Ltd | 3 |
1 |
| IHI Plant Services Corporation | 24 |
1 |
| Aitaa System s.r.o. | 1 |
1 |
| Fortescue Future Industries Pty Ltd | 56 |
1 |
| Other owners | 0 |