Patent holdings for IPC class E01B 7/28

Total number of patents in this class: 27

10-year publication summary

2
1
1
1
0
3
2
1
1
1
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Polycorp Ltd.
67
3
Checkers Industrial Products, LLC
70
2
Cleveland Track Material, Inc.
20
2
Masonite Corporation
714
2
Voestalpine VAE GmbH
32
2
Siemens Mobility, Inc.
361
2
Progress Rail Services Corp
236
1
Bombardier Transportation GmbH
644
1
Checkers Industrial Products, Inc.
3
1
Cleveland Reclaim Industries, Inc.
44
1
Knapp AG
136
1
Newtl
37
1
Voestalpine Weichensysteme GmbH
8
1
Peterson Systems International, Inc.
3
1
Autostore Technology AS
1072
1
Jez Sistemas Ferroviarios, S.L.
7
1
Alstom Holdings
20
1
Pandrol Iberica S.A.U.
5
1
Lindemulder, Paul
1
1
Het Elastomertechnik GmbH
1
1
Other owners 0