- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 33/00 - Trucks or other devices for transporting machines for slitting or completely freeing the mineral from the seam
Patent holdings for IPC class E21C 33/00
Total number of patents in this class: 23
10-year publication summary
|
1
|
2
|
2
|
1
|
2
|
0
|
0
|
1
|
4
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sandvik Mining and Construction Oy | 890 |
8 |
| Komatsu Ltd. | 4740 |
6 |
| Massachusetts Institute of Technology | 10273 |
1 |
| Impact Technologies, LLC | 12 |
1 |
| Syncrude Canada Ltd. in Trust for The Owners of The Syncrude Project, AS such Owners Exist NOW and in The Future | 54 |
1 |
| Joy Global Surface Mining Inc | 371 |
1 |
| Medatech Engineering Services Ltd. | 6 |
1 |
| Ume Australia Pty Ltd | 1 |
1 |
| Caterpillar Inc. | 22 |
1 |
| Transportation IP Holdings, LLC | 1 |
1 |
| Pioneer Conveyor, LLC | 1 |
1 |
| Other owners | 0 |