- 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 17/05 - Swivel joints
Patent holdings for IPC class E21B 17/05
Total number of patents in this class: 275
10-year publication summary
29
|
43
|
29
|
27
|
26
|
15
|
18
|
25
|
20
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mako Rentals, Inc. | 61 |
30 |
Halliburton Energy Services, Inc. | 20165 |
24 |
Saudi Arabian Oil Company | 11322 |
14 |
Schlumberger Technology Corporation | 9690 |
13 |
Cameron International Corporation | 1305 |
8 |
Tercel IP Limited | 46 |
7 |
Weatherford Technology Holdings, LLC | 2135 |
6 |
National Oilwell Varco, L.P. | 1604 |
6 |
Aramco Services Company | 3504 |
5 |
Baker Hughes Incorporated | 5689 |
4 |
Premium Artificial Lift Systems Ltd. | 17 |
4 |
Boart Longyear Company | 262 |
4 |
Schlumberger Canada Limited | 6913 |
3 |
Schlumberger Technology B.v. | 4951 |
3 |
Schlumberger Holdings Limited | 2947 |
3 |
ConocoPhillips Company | 1657 |
3 |
Ene29 S.ar.l. | 32 |
3 |
ExxonMobil Upstream Research Company | 2525 |
3 |
FMC Technologies, Inc. | 603 |
3 |
Isodrill, LLC | 3 |
3 |
Other owners | 126 |