- 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 37/06 - Methods or apparatus for cleaning boreholes or wells using chemical means for preventing or limiting the deposition of paraffins or like substances
Patent holdings for IPC class E21B 37/06
Total number of patents in this class: 858
10-year publication summary
74
|
119
|
116
|
84
|
79
|
74
|
84
|
58
|
62
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Halliburton Energy Services, Inc. | 20165 |
127 |
Saudi Arabian Oil Company | 11322 |
69 |
Baker Hughes Holdings LLC | 3060 |
24 |
Championx USA Inc. | 250 |
21 |
Schlumberger Technology Corporation | 9690 |
20 |
Baker Hughes Incorporated | 5689 |
19 |
Cameron International Corporation | 1305 |
16 |
Dorf Ketal Chemicals FZE | 238 |
16 |
Ecolab USA Inc. | 5190 |
15 |
M-I L.L.C. | 893 |
15 |
Schlumberger Canada Limited | 6913 |
14 |
Petroleo Brasileiro S.A. - Petrobras | 730 |
13 |
Baker Hughes, a GE Company, LLC | 2171 |
13 |
ConocoPhillips Company | 1657 |
12 |
Baker Hughes Oilfield Operations, LLC | 1885 |
12 |
Aramco Services Company | 3504 |
11 |
Locus Solutions IPCo, LLC | 233 |
10 |
Dow Global Technologies LLC | 10147 |
9 |
OneSubsea IP UK Limited | 378 |
9 |
ExxonMobil Upstream Research Company | 2525 |
8 |
Other owners | 405 |