- All sections
- C - Chemistrymetallurgy
- C10C - Working-up tar, pitch, asphalt, bitumenpyroligneous acid
- C10C 3/00 - Working-up pitch, asphalt, bitumen
Patent holdings for IPC class C10C 3/00
Total number of patents in this class: 393
10-year publication summary
|
22
|
20
|
25
|
20
|
45
|
38
|
36
|
30
|
20
|
16
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Carbon Holdings Intellectual Properties, LLC | 68 |
20 |
| ExxonMobil Technology and Engineering Company | 1387 |
20 |
| Saudi Arabian Oil Company | 14349 |
19 |
| ExxonMobil Research And Engineering Company | 2395 |
16 |
| Mawetal LLC | 39 |
16 |
| SunCor Energy Inc. | 731 |
10 |
| Uop LLC | 4407 |
8 |
| ExxonMobil Chemical Patents Inc. | 3760 |
7 |
| Imperbel | 13 |
7 |
| Rain Carbon Germany GmbH | 66 |
7 |
| Korea Research Institute of Chemical Technology | 1486 |
6 |
| Soprema | 91 |
6 |
| ACP Technologies, LLC | 9 |
6 |
| ENI S.p.A. | 1316 |
5 |
| Imperial Oil Resources Limited | 156 |
5 |
| OCI Company Ltd. | 169 |
5 |
| Shell Internationale Research Maatschappij B.V. | 3387 |
4 |
| Aramco Services Company | 4192 |
4 |
| Canadian National Railway Company | 144 |
4 |
| Kellogg Brown & Root LLC | 524 |
4 |
| Other owners | 214 |