Patent holdings for IPC class E01B 9/68

Total number of patents in this class: 138

10-year publication summary

11
14
12
9
8
9
7
10
7
4
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Pandrol Limited
94
18
Vossloh-Werke GmbH
96
17
Progress Rail Services Corp
225
8
Schwihag AG
34
6
Semperit AG Holding
30
4
Zhejiang Tiantie Industry Co., Ltd.
26
4
Mitsui Chemicals, Inc.
3134
3
HF Holding SA
28
3
Sika Technology AG
2650
3
Specter Innovations Group Pty Ltd
3
3
Delkor Rail Pty. Ltd.
2
2
DT - Vyhybkárna a strojírna, a.s.
12
2
Gantry Railing Limited
13
2
Getzner Werkstoffe Holding GmbH
83
2
Intercast & Forge Pty Limited
3
2
L.B. Foster Company
53
2
Plastex SA
28
2
Politechnika Krakowska Im. Tadeusza Kosciuszki
15
2
Qingdao Create Environment Control Technology Co., Ltd.
14
2
RAIL.ONE GmbH
25
2
Other owners 49