- 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 11/00 - Other drilling tools
Patent holdings for IPC class E21B 11/00
Total number of patents in this class: 91
10-year publication summary
|
6
|
9
|
6
|
5
|
17
|
10
|
8
|
9
|
9
|
4
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20977 |
5 |
| Richard Goren Enterprises, LLC | 8 |
4 |
| Concore BV | 10 |
4 |
| Globe (Jiangsu) Co., Ltd. | 269 |
4 |
| Makita Corporation | 2473 |
2 |
| Husqvarna AB | 2930 |
2 |
| Hypersciences, Inc. | 42 |
2 |
| R.n.p. Industries Inc. | 7 |
2 |
| Saudi Arabian Oil Company | 13428 |
2 |
| Scientific Drilling International, Inc. | 168 |
2 |
| Vermeer Manufacturing Company | 639 |
2 |
| A.W.C. Distributing, Inc. | 3 |
2 |
| Techtronic Cordless GP, Gainful Plan Trading Limited, an entity organized in the British Virgin Islands and TTI Finance Ltd., an entity organized in the British Virgin Islands | 1600 |
2 |
| Ocean Infinity Operations Pte. Ltd. | 3 |
2 |
| Baker Hughes Incorporated | 5243 |
1 |
| British Telecommunications Public Limited Company | 2646 |
1 |
| Enventure Global Technology, L.L.C. | 88 |
1 |
| Taiwan Semiconductor Manufacturing Company, Ltd. | 43854 |
1 |
| Black & Decker, Inc. | 2410 |
1 |
| Hilti Aktiengesellschaft | 3515 |
1 |
| Other owners | 48 |