- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/36 - Water-in-oil emulsions
Patent holdings for IPC class C09K 8/36
Total number of patents in this class: 645
10-year publication summary
47
|
50
|
67
|
79
|
73
|
59
|
34
|
24
|
23
|
3
|
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 |
129 |
Saudi Arabian Oil Company | 11322 |
96 |
Schlumberger Technology Corporation | 9690 |
32 |
M-I L.L.C. | 893 |
32 |
Aramco Services Company | 3504 |
26 |
Lamberti SpA | 258 |
20 |
CURTIS, Philip, Anthony | 497 |
15 |
Emery Oleochemicals GmbH | 111 |
12 |
Ingevity South Carolina, LLC | 232 |
10 |
Chevron U.S.A. Inc. | 3774 |
9 |
ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 211 |
9 |
BYK-Chemie GmbH | 437 |
8 |
Flotek Chemistry, LLC | 120 |
8 |
M-I Drilling Fluids UK Limited | 90 |
8 |
Ecolab USA Inc. | 5190 |
7 |
King Fahd University of Petroleum and Minerals | 779 |
7 |
Schlumberger Oilfield UK Limited | 57 |
7 |
Chevron Phillips Chemical Company LP | 1779 |
6 |
Durham University | 36 |
6 |
The Mosaic Company | 165 |
6 |
Other owners | 192 |