Patent holdings for IPC class E01D 19/02

Total number of patents in this class: 167

10-year publication summary

13
12
12
13
12
14
18
19
16
3
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Shandong University
986
4
Shenzhen Municipal Design & Research Institute Co., Ltd.
24
4
Supportec Co., Ltd.
14
4
Hengqin Gonge Technology Co., Ltd.
5
4
PERI SE
392
4
Contech Engineered Solutions LLC
277
3
FiberCore IP B.V.
27
3
Hitachi Zosen Corporation
621
3
Laing O'Rourke plc
25
3
Samsung C&T Corporation
174
3
Summit Precast Concrete LP
6
3
Halliburton Energy Services, Inc.
20538
2
Asahi Engineering Co., Ltd.
7
2
Board of Supervisors of Louisiana State University and Agricultural and Mechanical College
810
2
BYD Company Limited
4455
2
Daewoo Engineering & Construction Co., Ltd.
28
2
Fuzhou University
296
2
IHI Corporation
3373
2
Korea Railroad Research Institute
173
2
PBC International, Inc.
4
2
Other owners 111