- 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 10/14 - Roller bits combined with non-rolling cutters other than of leading-portion type
Patent holdings for IPC class E21B 10/14
Total number of patents in this class: 115
10-year publication summary
|
12
|
10
|
9
|
8
|
16
|
11
|
7
|
5
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Holdings LLC | 3060 |
31 |
| Baker Hughes Incorporated | 5689 |
19 |
| Halliburton Energy Services, Inc. | 20165 |
14 |
| Smith International, Inc. | 761 |
5 |
| Ashmin Holding LLC | 19 |
5 |
| Southwest Petroleum University | 403 |
5 |
| Schlumberger Technology Corporation | 9690 |
3 |
| National Oilwell DHT, L.P. | 159 |
3 |
| Varel International Ind., L.P. | 73 |
3 |
| Kingdream Public Limited Company | 23 |
2 |
| National Oilwell Varco, L.P. | 1604 |
2 |
| Saudi Arabian Oil Company | 11322 |
2 |
| Ulterra Drilling Technologies, L.P. | 124 |
2 |
| Baker Hughes, a GE Company, LLC | 2171 |
2 |
| Shear Bits, Inc. | 8 |
2 |
| Schlumberger Canada Limited | 6913 |
1 |
| Schlumberger Technology B.v. | 4951 |
1 |
| Caterpillar Inc. | 8877 |
1 |
| Ashmin LC | 8 |
1 |
| Mitsubishi Materials Corporation | 2378 |
1 |
| Other owners | 10 |