Français Register Login

  • All sections
  • E - Fixed constructions
  • E02D - Foundationsexcavationsembankmentsunderground or underwater structures
  • E02D 29/073 - Tunnels or shuttering therefor assembled from sections individually sunk onto, or laid on, the water-bed, e.g. in a preformed trench

Patent holdings for IPC class E02D 29/073

Total number of patents in this class: 36

10-year publication summary

1
1
9
1
0
5
3
5
1
0
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
CCCC First Harbor Engineering Co., Ltd.
46
8
China State Construction Engineering (Hong Kong) Limited
11
6
Daewoo Engineering & Construction Co., Ltd.
28
4
CCCC Highway Consultants Co. Ltd.
15
4
No. 2 Engineering Company Ltd. of CCCC First Harbor Engineering Company Ltd.
5
2
Shandong University
1095
1
Trelleborg Ridderkerk B.V.
9
1
China Communications Construction Company Limited
14
1
China Communication 2nd Navigational Bureau 2nd Engineering Co., Ltd.
1
1
The Second Harbor Engineering Company
1
1
Aomi Construction Co., Ltd.
4
1
Strukton Betonbouw B.V.
1
1
CCCC Fourth Harbor Engineering Co., Ltd.
26
1
The Second Engineering Company of CCCC Fourth Harbor Engineering Co., Ltd.
11
1
Xijing University
3
1
Guangdong Laboratory of Artificial Intelligence and Digital Economy (SZ)
1
1
FCI Holdings Delaware, LLC
90
1
Other owners 0

  • ipowner home
  • ipqwery home
  • contact us
  • privacy policy
  • terms and conditions
© 2026 IPQwery All rights reserved