Patent holdings for IPC class E01D 19/02

Total number of patents in this class: 172

10-year publication summary

12
12
12
13
11
13
17
17
16
9
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Shandong University
1053
4
Shenzhen Municipal Design & Research Institute Co., Ltd.
24
4
Supportec Co., Ltd.
14
4
Hengqin Gonge Technology Co., Ltd.
5
4
PERI SE
422
4
Contech Engineered Solutions LLC
276
3
FiberCore IP B.V.
26
3
Hitachi Zosen Corporation
615
3
Laing O'Rourke plc
24
3
Samsung C&T Corporation
189
3
Summit Precast Concrete LP
6
3
Halliburton Energy Services, Inc.
20937
2
ArcelorMittal
2317
2
Asahi Engineering Co., Ltd.
7
2
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
825
2
BYD Company Limited
5081
2
Daewoo Engineering & Construction Co., Ltd.
28
2
Fuzhou University
318
2
IHI Corporation
3447
2
Korea Railroad Research Institute
177
2
Other owners 116