- All sections
- E - Fixed constructions
- E21B - Earth or rock drillingobtaining 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: 143
10-year publication summary
|
7
|
12
|
8
|
11
|
9
|
5
|
3
|
1
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Baker Hughes Holdings LLC | 3003 |
26 |
| Smith International, Inc. | 719 |
23 |
| Baker Hughes Incorporated | 5268 |
21 |
| Southwest Petroleum University | 467 |
8 |
| Sandvik Intellectual Property AB | 1484 |
6 |
| National Oilwell DHT, L.P. | 130 |
5 |
| Halliburton Energy Services, Inc. | 20871 |
3 |
| Baker Hughes Oilfield Operations, LLC | 2295 |
3 |
| Varel International Ind., LLC | 44 |
3 |
| Kingdream Public Limited Company | 25 |
2 |
| Kingdream Public Ltd. Co. | 6 |
2 |
| National Oilwell Varco, L.P. | 1668 |
2 |
| US Synthetic Corporation | 624 |
2 |
| Varel International Ind., L.P. | 69 |
2 |
| Joy Global Underground Mining LLC | 348 |
2 |
| Element Six (UK) Limited | 216 |
2 |
| Chengdu Weiyi Petroleum Technology Co., Ltd. | 6 |
2 |
| Shear Bits, Inc. | 10 |
2 |
| Schlumberger Technology Corporation | 10691 |
1 |
| Association pour La Recherche et le Developpement de Methodes et Processus Industriels-armines | 71 |
1 |
| Other owners | 25 |