- All sections
- C - Chemistrymetallurgy
- C10C - Working-up tar, pitch, asphalt, bitumenpyroligneous acid
- C10C 1/18 - Working-up tar by extraction with selective solvents
Patent holdings for IPC class C10C 1/18
Total number of patents in this class: 28
10-year publication summary
|
1
|
0
|
2
|
0
|
8
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0
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0
|
1
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carbon Holdings Intellectual Properties, LLC | 59 |
4 |
| Kellogg Brown & Root LLC | 518 |
3 |
| HSM Systems, Inc. | 6 |
2 |
| Terrapower, LLC | 331 |
2 |
| University of New Brunswick | 150 |
2 |
| University of Wyoming | 361 |
2 |
| ExxonMobil Chemical Patents Inc. | 4016 |
1 |
| China University of Petroleum-Beijing | 1 |
1 |
| ENI S.p.A. | 1257 |
1 |
| ExxonMobil Upstream Research Company | 2408 |
1 |
| GrafTech International Holdings Inc. | 112 |
1 |
| Ls9, Inc. | 29 |
1 |
| M-I L.L.C. | 815 |
1 |
| West Virginia University | 181 |
1 |
| Research Institute of Highway, Ministry of Transportation | 1 |
1 |
| Meva Energy AB | 8 |
1 |
| Laboratorium Czystych Technologii Acren Sp. z o.o. | 4 |
1 |
| Yulin Hengyi Salt Industry Co., Ltd. | 1 |
1 |
| Eco Carbon Materials Holding (Shenzhen) Company Limited | 1 |
1 |
| Other owners | 0 |