Patent holdings for IPC class E01B 3/16

Total number of patents in this class: 7

10-year publication summary

0
1
1
1
0
0
1
1
1
0
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
TrackNet Management SA
2
2
Japan Freight Railway Company
3
1
Nippon Steel & Sumikin Metal Products Co., Ltd.
35
1
Schwihag AG
34
1
Thyssenkrupp GFT Gleistechnik GmbH
8
1
MAYO, John, L.
1
1
Other owners 0