- All sections
- E - Fixed constructions
- E21B - Earth or rock drilling; obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B 10/12 - Roller bits with disc cutters
Patent holdings for IPC class E21B 10/12
Total number of patents in this class: 60
10-year publication summary
4
|
1
|
5
|
13
|
1
|
5
|
2
|
3
|
0
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Sandvik Intellectual Property AB | 1634 |
6 |
Sandvik Mining and Construction Tools AB | 147 |
5 |
Baker Hughes Incorporated | 5689 |
4 |
US Synthetic Corporation | 601 |
4 |
The Robbins Company | 9 |
3 |
AB Sandvik Materials Technology, | 30 |
3 |
Sandvik Powder Solutions AB | 3 |
3 |
Halliburton Energy Services, Inc. | 20165 |
2 |
Bouygues Travaux Publics | 30 |
2 |
HYDAC Technology GmbH | 221 |
2 |
Southwest Petroleum University | 403 |
2 |
Ulterra Drilling Technologies, L.P. | 124 |
2 |
Sichuan Deep & Fast Oil Drilling Tools Co., Ltd | 4 |
2 |
Schlumberger Technology Corporation | 9690 |
1 |
Caterpillar Inc. | 8877 |
1 |
Makita Corporation | 2339 |
1 |
Smith International, Inc. | 761 |
1 |
Atlas Copco Secoroc AB | 18 |
1 |
Herrenknecht AG | 186 |
1 |
Kingdream Public Ltd. Co. | 6 |
1 |
Other owners | 13 |