- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 25/10 - Rods; Drums
Patent holdings for IPC class E21C 25/10
Total number of patents in this class: 117
10-year publication summary
12
|
28
|
20
|
18
|
9
|
13
|
7
|
12
|
4
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Wirtgen GmbH | 507 |
29 |
Joy Global Underground Mining LLC | 331 |
13 |
Kennametal Inc. | 1380 |
6 |
Caterpillar Paving Products Inc. | 628 |
6 |
China University of Mining and Technology | 1189 |
5 |
Joy MM Delaware, Inc. | 58 |
5 |
Caterpillar Inc. | 8877 |
4 |
BOMAG GmbH | 405 |
4 |
Vermeer Manufacturing Company | 615 |
4 |
Novatek IP, LLC | 55 |
3 |
Shandong University of Science and Technology | 459 |
3 |
HeNan Polytechnic University | 81 |
3 |
Caterpillar Global Mining Europe GmbH | 86 |
2 |
Commonwealth Scientific and Industrial Research Organisation | 1652 |
2 |
Meccanica Breganzese S.p.A. in Breve MB S.p.A. | 33 |
2 |
Sandvik Intellectual Property AB | 1634 |
2 |
Sandvik Mining and Construction G.m.b.H. | 85 |
2 |
The Sollami Company | 51 |
2 |
Jiangsu Zhongji Mine Equipment Company Ltd. | 2 |
2 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
1 |
Other owners | 17 |