- All sections
- E - Fixed constructions
- E01B - Permanent way; permanent-way tools; machines for making railways of all kinds
- E01B 3/22 - Longitudinal sleepers; Longitudinal sleepers integral or combined with tie-rods; Combined longitudinal and transverse sleepers
Patent holdings for IPC class E01B 3/22
Total number of patents in this class: 5
10-year publication summary
|
0
|
2
|
0
|
1
|
0
|
0
|
2
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carpet Track Ltd | 2 |
2 |
| Corus UK Limited | 23 |
1 |
| Geotek, LLC | 9 |
1 |
| Mercury Rail Pty Ltd | 1 |
1 |
| Other owners | 0 |