- All sections
- C - Chemistrymetallurgy
- C10C - Working-up tar, pitch, asphalt, bitumenpyroligneous acid
- C10C 1/20 - Refining by chemical means
Patent holdings for IPC class C10C 1/20
Total number of patents in this class: 29
10-year publication summary
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1
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1
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2
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2
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1
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1
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1
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1
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0
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0
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| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Chemical Patents Inc. | 3977 |
4 |
| ExxonMobil Research And Engineering Company | 2570 |
3 |
| Kurita Water Industries Ltd. | 1195 |
2 |
| University of Wyoming | 361 |
2 |
| ExxonMobil Technology and Engineering Company | 1079 |
2 |
| Topsoe A/S | 898 |
2 |
| Uop LLC | 4237 |
1 |
| Ecolab USA Inc. | 5496 |
1 |
| Gevo, Inc. | 261 |
1 |
| GrafTech International Holdings Inc. | 112 |
1 |
| Marathon Oil Canada Corporation | 23 |
1 |
| Osaka Gas Chemicals Co., Ltd. | 137 |
1 |
| Phillips 66 Company | 1052 |
1 |
| Sumitomo Corporation | 57 |
1 |
| Syncrude Canada Ltd. | 84 |
1 |
| The University of Wyoming Research Corporation | 16 |
1 |
| Value Creation Inc. | 5 |
1 |
| China University of Petroleum | 57 |
1 |
| Eco Carbon Materials Holding (Shenzhen) Company Limited | 1 |
1 |
| Championx USA Inc. | 1 |
1 |
| Other owners | 0 |