- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/183 - Mining picks; Holders therefor with inserts or layers of wear-resisting material
Patent holdings for IPC class E21C 35/183
Total number of patents in this class: 224
10-year publication summary
|
25
|
18
|
18
|
21
|
29
|
19
|
25
|
13
|
8
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Element Six GmbH | 99 |
28 |
| The Sollami Company | 51 |
21 |
| US Synthetic Corporation | 601 |
21 |
| Element Six Abrasives S.A. | 148 |
19 |
| Kennametal Inc. | 1380 |
17 |
| Sandvik Intellectual Property AB | 1634 |
14 |
| Betek GmbH & Co. KG | 140 |
12 |
| Wirtgen GmbH | 507 |
11 |
| Element Six (UK) Limited | 178 |
10 |
| Schlumberger Technology Corporation | 9690 |
9 |
| Caterpillar Inc. | 8877 |
7 |
| Novatek IP, LLC | 55 |
5 |
| BOMAG GmbH | 405 |
4 |
| Metalogenia, S.A. | 45 |
3 |
| Mitsubishi Materials Corporation | 2378 |
3 |
| ESCO Group LLC | 321 |
3 |
| Apergy BMCS Acquisition Corporation | 8 |
3 |
| Carriere Industrial Supply Limited | 9 |
2 |
| Diamond Innovations, Inc. | 241 |
2 |
| Sandvik Mining and Construction G.m.b.H. | 85 |
2 |
| Other owners | 28 |