- All sections
- E - Fixed constructions
- E04H - Buildings or like structures for particular purposes; swimming or splash baths or pools; masts; fencing; tents or canopies, in general
- E04H 7/28 - Constructions, with or without perforated walls, depending on the use of specified materials mainly of concrete, e.g. reinforced concrete, or other stone-like material composed of special building elements
Patent holdings for IPC class E04H 7/28
Total number of patents in this class: 7
10-year publication summary
|
1
|
0
|
0
|
2
|
1
|
0
|
0
|
0
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0
|
0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Drossler GmbH Umwelttechnik | 7 |
3 |
| Droessler GmbH Umwelttechnik | 1 |
1 |
| SCA Unicoque, | 5 |
1 |
| IHI Plant Services Corporation | 18 |
1 |
| SARL Renaud & Fils | 1 |
1 |
| Other owners | 0 |