- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications 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: 605
10-year publication summary
|
52
|
42
|
42
|
32
|
31
|
17
|
24
|
21
|
18
|
22
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 21103 |
134 |
| Saudi Arabian Oil Company | 13716 |
46 |
| Schlumberger Canada Limited | 7446 |
28 |
| Schlumberger Technology B.v. | 5224 |
28 |
| Services Petroliers Schlumberger | 5888 |
28 |
| Schlumberger Technology Corporation | 11089 |
26 |
| Schlumberger Holdings Limited | 2780 |
13 |
| China University of Petroleum (Beijing) | 292 |
11 |
| Prad Research and Development Limited | 2687 |
11 |
| M-I L.L.C. | 805 |
10 |
| Toyo Seikan Group Holdings, Ltd. | 853 |
10 |
| S.p.c.m. SA | 239 |
9 |
| Chevron Phillips Chemical Company LP | 1855 |
8 |
| CURTIS, Philip, Anthony | 381 |
8 |
| Aramco Services Company | 4108 |
7 |
| China Petroleum & Chemical Corporation | 1961 |
6 |
| Ecolab USA Inc. | 5607 |
6 |
| Kuraray Co., Ltd. | 3543 |
6 |
| BASF SE | 21137 |
5 |
| CNPC USA Corp. | 169 |
5 |
| Other owners | 200 |