Patent holdings for IPC class E21B 7/24

Total number of patents in this class: 465

10-year publication summary

47
44
48
39
34
32
38
21
7
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.
20697
34
Thru Tubing Solutions, Inc.
373
29
National Oilwell Varco, L.P.
1644
19
Flexidrill Limited
46
18
Schlumberger Technology Corporation
10597
17
ITI Scotland Limited
151
16
Impulse Downhole Solutions Ltd.
55
15
Helmerich & Payne Technologies, LLC
99
12
National Oilwell DHT, L.P.
145
11
Schlumberger Canada Limited
7211
10
Services Petroliers Schlumberger
5743
9
Schlumberger Technology B.v.
5141
8
Terra Sonic International, LLC
34
8
Quaise Energy, Inc.
18
6
Schlumberger Holdings Limited
2846
5
KLX Energy Services LLC
69
5
Nabors Drilling Technologies USA, Inc.
556
5
Prad Research and Development Limited
2695
5
Scientific Drilling International, Inc.
167
5
Rival Downhole Tools LC
39
5
Other owners 223