- All sections
- C - Chemistry; metallurgy
- C09K - Materials for applications not otherwise provided for; applications of materials not otherwise provided for
- C09K 8/035 - Organic additives
Patent holdings for IPC class C09K 8/035
Total number of patents in this class: 1927
10-year publication summary
|
202
|
254
|
243
|
231
|
184
|
126
|
143
|
91
|
77
|
20
|
| 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 |
438 |
| Saudi Arabian Oil Company | 11322 |
256 |
| Aramco Services Company | 3504 |
72 |
| Schlumberger Technology Corporation | 9690 |
46 |
| M-I L.L.C. | 893 |
42 |
| Baker Hughes Incorporated | 5689 |
27 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 211 |
27 |
| Schlumberger Canada Limited | 6913 |
24 |
| Schlumberger Technology B.v. | 4951 |
22 |
| BASF SE | 19740 |
22 |
| Services Petroliers Schlumberger | 5426 |
22 |
| Baker Hughes, a GE Company, LLC | 2171 |
20 |
| Baker Hughes Holdings LLC | 3060 |
20 |
| Rhodia Operations | 1645 |
19 |
| China Petroleum & Chemical Corporation | 1623 |
17 |
| Clariant International Ltd. | 978 |
16 |
| Schlumberger Holdings Limited | 2947 |
15 |
| China University of Petroleum (Beijing) | 258 |
15 |
| Prad Research and Development Limited | 2696 |
14 |
| Emery Oleochemicals GmbH | 111 |
13 |
| Other owners | 780 |