- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/197 - Means for fixing picks or holders using sleeves, rings or the like, as main fixing elements
Patent holdings for IPC class E21C 35/197
Total number of patents in this class: 130
10-year publication summary
|
14
|
16
|
12
|
14
|
13
|
7
|
11
|
5
|
5
|
4
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Sollami Company | 51 |
22 |
| Betek GmbH & Co. KG | 140 |
17 |
| Wirtgen GmbH | 507 |
13 |
| Kennametal Inc. | 1380 |
12 |
| Sandvik Intellectual Property AB | 1634 |
10 |
| Schlumberger Technology Corporation | 9690 |
8 |
| BETEK Bergbau- und Hartmetalltechnik Karl-Heinz Simon GmbH & Co. KG | 15 |
6 |
| Joy Global Underground Mining LLC | 331 |
6 |
| Caterpillar Paving Products Inc. | 628 |
5 |
| Element Six GmbH | 99 |
3 |
| Element Six Abrasives S.A. | 148 |
2 |
| Joy MM Delaware, Inc. | 58 |
2 |
| Sandvik Mining and Construction G.m.b.H. | 85 |
2 |
| Vermeer Manufacturing Company | 615 |
2 |
| Element Six (UK) Limited | 178 |
2 |
| Caterpillar Inc. | 8877 |
1 |
| Black & Decker, Inc. | 2402 |
1 |
| Smith International, Inc. | 761 |
1 |
| Alliance Coal, LLC | 7 |
1 |
| BETEK GmbH | 1 |
1 |
| Other owners | 13 |