Patent holdings for IPC class E01D 19/04

Total number of patents in this class: 182

10-year publication summary

9
13
26
18
26
15
14
7
5
4
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Maurer Engineering GmbH
49
7
Shenzhen Municipal Design & Research Institute Co., Ltd.
24
6
Shenzhen Innova-Wise Engineering Technology Consulting Co., Ltd.
9
6
Bridge Bearing Manufacture Co., Ltd.
7
6
Maurer Sohne Engineering GmbH & Co. KG
13
5
The Yokohama Rubber Co., Ltd.
4034
4
Oiles Corporation
513
4
Sho-bond Corporation
11
4
Worksafe Technologies
18
4
Southeast University
1406
3
Nanjing Maole Engineering Materials Co., Ltd.
11
3
NEC Corporation
35619
2
Omron Corporation
7260
2
BYD Company Limited
4978
2
CCCC First Highway Consultants Co Ltd
14
2
Doka Industrie GmbH
34
2
Dreco Energy Services Ltd.
5
2
IHI Infrastructure Systems Co., Ltd.
17
2
mageba S.A.
4
2
R. J. Watson, Inc.
4
2
Other owners 112