- Sections
- C - Chimiemétallurgie
- C09K - Substances pour des applications non prévues ailleursapplications de substances non prévues ailleurs
- C09K 8/514 - Composés macromoléculaires d'origine naturelle, p. ex. polysaccharides, cellulose
Détention brevets de la classe C09K 8/514
Brevets de cette classe: 340
Historique des publications depuis 10 ans
|
25
|
37
|
52
|
30
|
26
|
12
|
17
|
13
|
8
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Propriétaires principaux
| Proprétaire |
Total
|
Cette classe
|
|---|---|---|
| Saudi Arabian Oil Company | 14235 |
93 |
| Halliburton Energy Services, Inc. | 21338 |
54 |
| Schlumberger Technology Corporation | 11818 |
22 |
| Aramco Services Company | 4195 |
21 |
| Schlumberger Canada Limited | 7606 |
13 |
| Schlumberger Technology B.v. | 5298 |
13 |
| Services Petroliers Schlumberger | 6024 |
13 |
| Schlumberger Holdings Limited | 2699 |
8 |
| Prad Research and Development Limited | 2661 |
8 |
| Lyondellbasell Advanced Polymers Inc. | 102 |
6 |
| China Petroleum & Chemical Corporation | 2152 |
4 |
| Oji Holdings Corporation | 797 |
4 |
| Baker Hughes Incorporated | 4934 |
3 |
| Elkem AS | 56 |
3 |
| King Fahd University of Petroleum and Minerals | 1572 |
3 |
| M-I L.L.C. | 746 |
3 |
| Southwest Petroleum University | 521 |
3 |
| Integrity Bio-chemicals, LLC | 61 |
3 |
| ENERGY SOLUTIONS (US) LLC, a Delaware limited liability company | 186 |
3 |
| Albert Einstein College of Medicine, Inc. | 596 |
2 |
| Autres propriétaires | 58 |