- All sections
- E - Fixed constructions
- E01F - Additional work, such as equipping roads or the construction of platforms, helicopter landing stages, signs, snow fences, or the like
- E01F 9/20 - Use of light guides, e.g. fibre-optic devices
Patent holdings for IPC class E01F 9/20
Total number of patents in this class: 25
10-year publication summary
|
2
|
8
|
2
|
9
|
11
|
0
|
4
|
1
|
0
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Altech Co.,Ltd. | 12 |
4 |
| Logisig Inc. | 15 |
2 |
| Quality Mat Company | 44 |
2 |
| Pasquale Impero | 6 |
2 |
| Sacyr Concesiones S.L. | 7 |
2 |
| ZF Friedrichshafen AG | 7135 |
1 |
| Airlite Plastics Co. | 92 |
1 |
| Evolutionary Markings, Inc. | 4 |
1 |
| JSP Limited | 172 |
1 |
| Lucobit AG | 25 |
1 |
| Miller Edge, Inc. | 23 |
1 |
| InnoTrafik Oy | 15 |
1 |
| Vitesco Technologies USA, LLC. | 366 |
1 |
| Hyosung General Co., Ltd | 4 |
1 |
| Signalisation D'urgence RH Inc. | 2 |
1 |
| Ledonrail Oy | 2 |
1 |
| Organic Lighting Systems, Inc. | 4 |
1 |
| Evolutionary Markings, LLC | 1 |
1 |
| Other owners | 0 |