- 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: 578
10-year publication summary
|
42
|
61
|
45
|
46
|
32
|
36
|
18
|
27
|
23
|
5
|
| 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 |
136 |
| Saudi Arabian Oil Company | 11322 |
44 |
| Schlumberger Canada Limited | 6913 |
22 |
| Schlumberger Technology B.v. | 4951 |
22 |
| Services Petroliers Schlumberger | 5426 |
22 |
| Schlumberger Technology Corporation | 9690 |
19 |
| CURTIS, Philip, Anthony | 497 |
14 |
| Schlumberger Holdings Limited | 2947 |
13 |
| China University of Petroleum (Beijing) | 258 |
11 |
| Prad Research and Development Limited | 2696 |
11 |
| M-I L.L.C. | 893 |
10 |
| S.p.c.m. SA | 308 |
10 |
| Toyo Seikan Group Holdings, Ltd. | 765 |
10 |
| Chevron Phillips Chemical Company LP | 1779 |
8 |
| Aramco Services Company | 3504 |
6 |
| Ecolab USA Inc. | 5190 |
6 |
| Championx USA Inc. | 250 |
6 |
| BASF SE | 19740 |
5 |
| China Petroleum & Chemical Corporation | 1623 |
5 |
| Kuraray Co., Ltd. | 3392 |
5 |
| Other owners | 193 |