- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 5/08 - Members specially adapted to be used in prestressed constructions
Patent holdings for IPC class E04C 5/08
Total number of patents in this class: 277
10-year publication summary
|
35
|
31
|
32
|
21
|
22
|
16
|
14
|
17
|
8
|
12
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Electric Industries, Ltd. | 15647 |
13 |
| Soletanche Freyssinet | 481 |
11 |
| NV Bekaert SA | 744 |
8 |
| Sumitomo (SEI) Steel Wire Corp. | 42 |
7 |
| HPC Okinawa Co., Ltd. | 5 |
5 |
| CCL Stressing International Limited | 28 |
4 |
| Kurosawa Construction Co., Ltd. | 9 |
4 |
| VSL International AG | 89 |
4 |
| 3B Construction Solutions, Inc. | 4 |
3 |
| CPC AG | 11 |
3 |
| Morton Buildings, Inc. | 39 |
3 |
| Precision-Hayes International Inc. | 34 |
3 |
| Tindall Corporation | 50 |
3 |
| University of Canterbury | 33 |
3 |
| FSC Technologies, LLC | 6 |
3 |
| Evehx Engenharia Ltda. | 8 |
3 |
| Hickory Design Pty Ltd | 14 |
3 |
| Parkd Ltd | 6 |
3 |
| Nordex Energy Spain, S.A.U. | 126 |
3 |
| Huin Co., Ltd. | 6 |
3 |
| Other owners | 185 |