- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/12 - Guiding the machine along a conveyor for the cut material
Patent holdings for IPC class E21C 35/12
Total number of patents in this class: 36
10-year publication summary
|
5
|
6
|
2
|
0
|
3
|
1
|
0
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Joy Global Underground Mining LLC | 349 |
11 |
| Caterpillar Global Mining Europe GmbH | 85 |
6 |
| Bucyrus Europe GmbH | 32 |
6 |
| Caterpillar Inc. | 9644 |
5 |
| Kopex Machinery Spółka Akcyjna | 4 |
2 |
| American Equipment & Machine, Inc. | 1 |
1 |
| Joy MM Delaware, Inc. | 56 |
1 |
| SunCor Energy Inc. | 745 |
1 |
| Bucyrus DBT Europe GmbH | 9 |
1 |
| Halbach & Braun Industrieanlagen GmbH & Co. | 1 |
1 |
| Yimin Zhang | 2 |
1 |
| Other owners | 0 |