- All sections
- E - Fixed constructions
- E01B - Permanent way; permanent-way tools; machines for making railways of all kinds
- E01B 29/44 - Methods for effecting joining of rails in the track, e.g. taking account of ambient temperature
Patent holdings for IPC class E01B 29/44
Total number of patents in this class: 29
10-year publication summary
|
1
|
0
|
3
|
7
|
2
|
4
|
1
|
4
|
0
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Matisa Materiel Industriel SA | 66 |
5 |
| Nippon Steel Corporation | 5649 |
4 |
| Railtech International | 18 |
3 |
| Matisa Materiel Industriel SA | 13 |
3 |
| Plasser & Theurer Export Von Bahnbaumaschinen Gesellschaft m.b.H. | 385 |
2 |
| Plastiform's | 8 |
2 |
| Pandrol (vortok) Limited | 9 |
2 |
| Goldschmidt Holding GmbH | 23 |
2 |
| Chemetron-Railway Products, Inc. | 4 |
1 |
| Elektro-thermit GmbH & Co. KG | 8 |
1 |
| Pangang Group Research Institute Co., Ltd. | 21 |
1 |
| SNCF Reseau | 38 |
1 |
| Mirage Ltd | 4 |
1 |
| Ferrovial Construcción, S.A. | 7 |
1 |
| Other owners | 0 |