- All sections
- C - Chemistrymetallurgy
- C10C - Working-up tar, pitch, asphalt, bitumenpyroligneous acid
- C10C 3/02 - Working-up pitch, asphalt, bitumen by chemical means
Patent holdings for IPC class C10C 3/02
Total number of patents in this class: 177
10-year publication summary
|
11
|
7
|
7
|
7
|
22
|
17
|
13
|
7
|
15
|
11
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| ExxonMobil Technology and Engineering Company | 1367 |
16 |
| Baker Hughes Incorporated | 4927 |
9 |
| SunCor Energy Inc. | 732 |
6 |
| ACP Technologies, LLC | 9 |
6 |
| ExxonMobil Research And Engineering Company | 2407 |
5 |
| Saudi Arabian Oil Company | 14248 |
5 |
| Ecolab USA Inc. | 5803 |
4 |
| Baker Hughes Holdings LLC | 3021 |
4 |
| Resonac Corporation | 3546 |
4 |
| Cargill, Incorporated | 2956 |
3 |
| GreenMantra Recycling Technologies Ltd. | 72 |
3 |
| Carbon Holdings Intellectual Properties, LLC | 68 |
3 |
| Chevron U.S.A. Inc. | 4136 |
2 |
| Showa Denko K.K. | 2069 |
2 |
| Idemitsu Kosan Co., Ltd. | 4241 |
2 |
| Arizona Board of Regents on behalf of Arizona State University | 2941 |
2 |
| Cenovus Energy Inc. | 425 |
2 |
| Extrakt Process Solutions LLC | 40 |
2 |
| Imperial Oil Resources Limited | 159 |
2 |
| Kellogg Brown & Root LLC | 526 |
2 |
| Other owners | 93 |