- 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 28/00 - Vibration generating arrangements for boreholes or wells, e.g. for stimulating production
Patent holdings for IPC class E21B 28/00
Total number of patents in this class: 511
10-year publication summary
|
41
|
40
|
39
|
48
|
36
|
28
|
24
|
14
|
9
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20924 |
43 |
| Thru Tubing Solutions, Inc. | 379 |
33 |
| Saudi Arabian Oil Company | 13263 |
24 |
| Ene29 S.ar.l. | 32 |
21 |
| National Oilwell Varco, L.P. | 1683 |
14 |
| Schlumberger Technology Corporation | 10802 |
11 |
| Aramco Services Company | 3993 |
9 |
| Impulse Downhole Solutions Ltd. | 55 |
9 |
| National Oilwell DHT, L.P. | 128 |
9 |
| Schlumberger Canada Limited | 7343 |
8 |
| Hydroacoustics Inc. | 15 |
8 |
| ITI Scotland Limited | 151 |
8 |
| Helmerich & Payne Technologies, LLC | 102 |
8 |
| Schlumberger Technology B.v. | 5182 |
7 |
| Flexidrill Limited | 47 |
7 |
| KLX Energy Services LLC | 69 |
7 |
| Services Petroliers Schlumberger | 5811 |
7 |
| Baker Hughes Holdings LLC | 3006 |
7 |
| Rival Downhole Tools LC | 40 |
6 |
| Well-smart Technologies Global, Inc. | 6 |
6 |
| Other owners | 259 |