- All sections
- E - Fixed constructions
- E01B - Permanent way; permanent-way tools; machines for making railways of all kinds
- E01B 31/24 - Forming, treating, reconditioning, or cleaning holes in sleepers; Drilling-templates
Patent holdings for IPC class E01B 31/24
Total number of patents in this class: 11
10-year publication summary
|
2
|
0
|
0
|
2
|
1
|
3
|
1
|
0
|
0
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Cembre S.p.A. | 81 |
3 |
| Racine Railroad Products, Inc. | 18 |
2 |
| Alstom Transport Technologies | 566 |
1 |
| Sharp Chemical Ind. Co., Ltd. | 3 |
1 |
| Hankyu Corporation | 1 |
1 |
| The Willamette Valley Company LLC | 35 |
1 |
| Ateliers L.R. Etanco | 41 |
1 |
| Smith, Judith Ann | 1 |
1 |
| Other owners | 0 |