- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/12 - Clay-free compositions containing synthetic organic macromolecular compounds or their precursors
Patent holdings for IPC class C09K 8/12
Total number of patents in this class: 585
10-year publication summary
61
|
45
|
46
|
32
|
36
|
18
|
26
|
23
|
18
|
0
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Halliburton Energy Services, Inc. | 20419 |
134 |
Saudi Arabian Oil Company | 12423 |
45 |
Schlumberger Canada Limited | 7147 |
24 |
Schlumberger Technology B.v. | 5068 |
24 |
Services Petroliers Schlumberger | 5626 |
24 |
Schlumberger Technology Corporation | 10241 |
21 |
CURTIS, Philip, Anthony | 496 |
14 |
Schlumberger Holdings Limited | 2867 |
13 |
China University of Petroleum (Beijing) | 271 |
11 |
Prad Research and Development Limited | 2696 |
11 |
M-I L.L.C. | 855 |
10 |
S.p.c.m. SA | 288 |
10 |
Toyo Seikan Group Holdings, Ltd. | 805 |
10 |
Chevron Phillips Chemical Company LP | 1818 |
8 |
Aramco Services Company | 3744 |
6 |
Ecolab USA Inc. | 5338 |
6 |
BASF SE | 20403 |
5 |
China Petroleum & Chemical Corporation | 1780 |
5 |
CNPC USA Corp. | 134 |
5 |
Kuraray Co., Ltd. | 3461 |
5 |
Other owners | 194 |