- All sections
- E - Fixed constructions
- E04H - Buildings or like structures for particular purposesswimming or splash baths or poolsmastsfencingtents or canopies, in general
- E04H 12/16 - Prestressed structures
Patent holdings for IPC class E04H 12/16
Total number of patents in this class: 182
10-year publication summary
|
21
|
21
|
16
|
15
|
10
|
9
|
14
|
4
|
14
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Wobben Properties GmbH | 1219 |
29 |
| Nordex Energy Spain, S.A.U. | 125 |
27 |
| Nordex Energy SE & Co. KG | 193 |
10 |
| Wind Tower Technologies, LLC | 13 |
9 |
| Max Bogl Wind AG | 20 |
8 |
| Tindall Corporation | 50 |
6 |
| Holcim Technology Ltd. | 778 |
5 |
| Siemens Gamesa Renewable Energy, Inc. | 9 |
5 |
| Metalvix Engenharia e Consultoria Ltda | 3 |
3 |
| Pacadar S.A. | 14 |
3 |
| Ventur GmbH | 3 |
3 |
| Anker Werk I Port Mukran GmbH | 6 |
3 |
| Smart & Green Mukran Concrete GmbH | 11 |
3 |
| University of Southern California | 2117 |
2 |
| Esteyco S.A.P. | 33 |
2 |
| Ingecid, Investigación y Desarrollo de Proyectos, S.L. | 21 |
2 |
| Iowa State University Research Foundation, Inc. | 785 |
2 |
| Max Bogl Bauunternehmung GmbH & Co. KG | 23 |
2 |
| MCA Tecnologia de Estruturas Ltda | 2 |
2 |
| RUTE Foundation Systems, Inc. | 9 |
2 |
| Other owners | 54 |