- All sections
- E - Fixed constructions
- E01B - Permanent way; permanent-way tools; machines for making railways of all kinds
- E01B 7/12 - Fixed frogs made of one part or composite
Patent holdings for IPC class E01B 7/12
Total number of patents in this class: 20
10-year publication summary
1
|
1
|
1
|
3
|
2
|
0
|
0
|
2
|
2
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Cleveland Track Material, Inc. | 20 |
2 |
DT - Vyhybkárna a strojírna, a.s. | 12 |
2 |
Voestalpine VAE GmbH | 34 |
2 |
voestalpine Railway Systems GmbH | 26 |
2 |
China Railway Baoji Bridge Group Co., Ltd | 8 |
2 |
Getzner Werkstoffe Holding GmbH | 83 |
1 |
Polycorp Ltd. | 66 |
1 |
Thyssenkrupp GFT Gleistechnik GmbH | 8 |
1 |
Voestalpine Weichensysteme GmbH | 8 |
1 |
Vossloh Cogifer | 14 |
1 |
voestalpine BWG GmbH | 6 |
1 |
Shandong Yuanda Special Material Polytron Technologies Inc | 1 |
1 |
Zhejiang Desheng Railway Equipment Co., Ltd | 2 |
1 |
Voestalpine Turnout Technology Zeltweg GmbH | 7 |
1 |
voestalpine Turnout Technology Germany GmbH | 12 |
1 |
Other owners | 0 |