- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/24 - Polymers
Patent holdings for IPC class C09K 8/24
Total number of patents in this class: 358
10-year publication summary
25
|
16
|
18
|
35
|
36
|
36
|
22
|
17
|
12
|
10
|
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 |
57 |
Saudi Arabian Oil Company | 11322 |
54 |
Southwest Petroleum University | 403 |
12 |
Sun Drilling Products Corporation | 66 |
12 |
CNPC Engineering Technology R&D Company Limited | 55 |
10 |
China National Petroleum Corporation | 245 |
9 |
China University of Petroleum (East China) | 319 |
9 |
Schlumberger Technology Corporation | 9690 |
7 |
Schlumberger Canada Limited | 6913 |
7 |
Schlumberger Technology B.v. | 4951 |
6 |
China University of Petroleum (Beijing) | 258 |
6 |
CNPC USA Corp. | 109 |
6 |
Hercules LLC | 231 |
6 |
ISP Investments Inc. | 485 |
6 |
Services Petroliers Schlumberger | 5426 |
6 |
Aramco Services Company | 3504 |
5 |
China Petroleum & Chemical Corporation | 1623 |
5 |
M-I L.L.C. | 893 |
5 |
Schlumberger Holdings Limited | 2947 |
4 |
Baker Hughes Incorporated | 5689 |
4 |
Other owners | 122 |