- All sections
- E - Fixed constructions
- E21C - Mining or quarrying
- E21C 35/183 - Mining picksHolders therefor with inserts or layers of wear-resisting material
Patent holdings for IPC class E21C 35/183
Total number of patents in this class: 237
10-year publication summary
18
|
18
|
21
|
29
|
19
|
25
|
13
|
11
|
2
|
7
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Element Six GmbH | 105 |
30 |
US Synthetic Corporation | 624 |
20 |
Kennametal Inc. | 1388 |
19 |
Element Six Abrasives S.A. | 147 |
19 |
The Sollami Company | 54 |
19 |
Sandvik Intellectual Property AB | 1484 |
13 |
Betek GmbH & Co. KG | 144 |
12 |
Wirtgen GmbH | 501 |
11 |
Element Six (UK) Limited | 216 |
11 |
Schlumberger Technology Corporation | 10691 |
9 |
Caterpillar Inc. | 9539 |
9 |
Novatek IP, LLC | 55 |
5 |
Keystone Engineering & Mfg. LLC | 12 |
5 |
BOMAG GmbH | 402 |
4 |
Sandvik Mining and Construction G.m.b.H. | 91 |
4 |
Metalogenia, S.A. | 53 |
3 |
Mitsubishi Materials Corporation | 2438 |
3 |
ESCO Group LLC | 314 |
3 |
Apergy BMCS Acquisition Corporation | 7 |
3 |
Carriere Industrial Supply Limited | 10 |
2 |
Other owners | 33 |