Patent holdings for IPC class E01H 8/12

Total number of patents in this class: 12

10-year publication summary

0
1
1
0
1
1
1
0
1
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Elways AB
27
3
Railrestore BV
3
3
Evias AB
7
2
China Railway Siyuan Survey and Design Group Co., Ltd.
69
1
Eriste 2007 Inversiones, S. L.
1
1
Guokai Technology(wuhan) Co. Ltd.
1
1
Discovery Purchaser Corporation
310
1
Other owners 0