- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 23/85 - Chromium, molybdenum, or tungsten
Patent holdings for IPC class B01J 23/85
Total number of patents in this class: 283
10-year publication summary
|
16
|
11
|
10
|
12
|
22
|
11
|
8
|
13
|
3
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Chevron U.S.A. Inc. | 3774 |
24 |
| IFP Energies Nouvelles | 2717 |
24 |
| Shell Internationale Research Maatschappij B.V. | 3792 |
15 |
| Shell USA, Inc. | 1074 |
12 |
| ExxonMobil Research And Engineering Company | 2830 |
10 |
| Shell Oil Company | 2196 |
10 |
| Uop LLC | 4083 |
9 |
| Advanced Refining Technologies LLC | 61 |
9 |
| Saudi Arabian Oil Company | 11322 |
9 |
| Albemarle Netherlands B.V. | 93 |
8 |
| Instituto Mexicano Del Petroleo | 213 |
8 |
| Aramco Services Company | 3504 |
5 |
| China Petroleum & Chemical Corporation | 1623 |
5 |
| JX Nippon Oil & Energy Corporation | 1019 |
5 |
| PetroChina Company Limited | 462 |
5 |
| National Institute of Advanced Industrial Science and Technology | 3677 |
4 |
| Ketjen Netherlands B.V. | 23 |
4 |
| Albemarle Europe SPRL | 38 |
3 |
| Eurecat S.A. | 85 |
3 |
| Nankai University | 201 |
3 |
| Other owners | 108 |