- 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 10/16 - Roller bits characterised by tooth form or arrangement
Patent holdings for IPC class E21B 10/16
Total number of patents in this class: 144
10-year publication summary
12
|
7
|
12
|
8
|
11
|
9
|
5
|
3
|
1
|
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 |
26 |
Smith International, Inc. | 761 |
25 |
Baker Hughes Incorporated | 5689 |
22 |
Southwest Petroleum University | 403 |
8 |
National Oilwell DHT, L.P. | 159 |
6 |
Sandvik Intellectual Property AB | 1634 |
6 |
Halliburton Energy Services, Inc. | 20165 |
3 |
Varel International Ind., LLC | 43 |
3 |
Kingdream Public Limited Company | 23 |
2 |
Kingdream Public Ltd. Co. | 6 |
2 |
National Oilwell Varco, L.P. | 1604 |
2 |
US Synthetic Corporation | 601 |
2 |
Varel International Ind., L.P. | 73 |
2 |
Joy Global Underground Mining LLC | 331 |
2 |
Element Six (UK) Limited | 178 |
2 |
Chengdu Weiyi Petroleum Technology Co., Ltd. | 5 |
2 |
Shear Bits, Inc. | 8 |
2 |
Schlumberger Technology Corporation | 9690 |
1 |
Association pour La Recherche et le Developpement de Methodes et Processus Industriels-armines | 63 |
1 |
Atlas Copco Secoroc LLC | 19 |
1 |
Other owners | 24 |