- All sections
- C - Chemistrymetallurgy
- C09K - Materials for applications not otherwise provided forapplications of materials not otherwise provided for
- C09K 8/44 - Compositions for cementing, e.g. for cementing casings into boreholesCompositions for plugging, e.g. for killing wells containing organic binders only
Patent holdings for IPC class C09K 8/44
Total number of patents in this class: 336
10-year publication summary
|
39
|
30
|
33
|
35
|
34
|
21
|
22
|
21
|
28
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Halliburton Energy Services, Inc. | 20862 |
67 |
| Saudi Arabian Oil Company | 12997 |
52 |
| Aramco Services Company | 3936 |
14 |
| Schlumberger Technology Corporation | 10673 |
10 |
| Hilti Aktiengesellschaft | 3491 |
10 |
| Denka Company Limited | 2563 |
8 |
| Kuraray Co., Ltd. | 3502 |
8 |
| China Petroleum & Chemical Corporation | 1889 |
7 |
| Southwest Petroleum University | 466 |
7 |
| Schlumberger Canada Limited | 7283 |
5 |
| Schlumberger Technology B.v. | 5164 |
5 |
| Chevron U.S.A. Inc. | 3945 |
5 |
| Services Petroliers Schlumberger | 5775 |
5 |
| Baker Hughes Holdings LLC | 3004 |
5 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 181 |
5 |
| ConocoPhillips Company | 1676 |
4 |
| Baker Hughes Oilfield Operations, LLC | 2289 |
4 |
| Baker Hughes, a GE Company, LLC | 2113 |
4 |
| SNF Group | 362 |
4 |
| Baker Hughes Incorporated | 5273 |
3 |
| Other owners | 104 |