- 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: 379
10-year publication summary
|
12
|
14
|
17
|
24
|
17
|
39
|
33
|
30
|
29
|
16
|
| 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 | 60 |
20 |
| Saudi Arabian Oil Company | 13622 |
17 |
| ExxonMobil Research And Engineering Company | 2539 |
16 |
| Mawetal LLC | 39 |
16 |
| ExxonMobil Technology and Engineering Company | 1154 |
16 |
| SunCor Energy Inc. | 744 |
10 |
| Imperbel | 15 |
9 |
| Uop LLC | 4256 |
8 |
| ExxonMobil Chemical Patents Inc. | 3949 |
7 |
| Korea Research Institute of Chemical Technology | 1409 |
6 |
| Rain Carbon Germany GmbH | 54 |
6 |
| ENI S.p.A. | 1278 |
5 |
| Imperial Oil Resources Limited | 170 |
5 |
| OCI Company Ltd. | 158 |
5 |
| Soprema | 85 |
5 |
| ACP Technologies, LLC | 7 |
5 |
| Shell Internationale Research Maatschappij B.V. | 3537 |
4 |
| Canadian National Railway Company | 156 |
4 |
| Kellogg Brown & Root LLC | 515 |
4 |
| Syncrude Canada Ltd. | 84 |
4 |
| Other owners | 207 |