- All sections
- E - Fixed constructions
- E04C - Structural elementsbuilding materials
- E04C 5/10 - Ducts
Patent holdings for IPC class E04C 5/10
Total number of patents in this class: 43
10-year publication summary
|
6
|
11
|
6
|
7
|
4
|
5
|
5
|
3
|
3
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Tindall Corporation | 50 |
5 |
| Sumitomo Electric Industries, Ltd. | 15693 |
4 |
| VSL International AG | 89 |
4 |
| Totaku Industries, Inc. | 21 |
3 |
| University of South Florida | 1843 |
2 |
| Precision-Hayes International Inc. | 34 |
2 |
| Soletanche Freyssinet | 481 |
2 |
| Structural Technologies, LLC | 3 |
2 |
| Lugo Designs LLC | 2 |
2 |
| Actuant Corporation | 82 |
1 |
| CCL International Ltd. | 1 |
1 |
| Danmarks Tekniske Universitet | 989 |
1 |
| Dywidag-Systems International GmbH | 75 |
1 |
| General Technologies, Inc. | 29 |
1 |
| Ludwig Hettich Holding GmbH & Co. KG | 31 |
1 |
| NV Bekaert SA | 742 |
1 |
| Rutgers, The State University of New Jersey | 1926 |
1 |
| Sumitomo (SEI) Steel Wire Corp. | 42 |
1 |
| FSC Technologies, LLC | 6 |
1 |
| Structural Technologies IP, LLC | 5 |
1 |
| Other owners | 6 |