- All sections
- B - Performing operationstransporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistrytheir relevant apparatus
- B01J 23/85 - Chromium, molybdenum, or tungsten
Patent holdings for IPC class B01J 23/85
Total number of patents in this class: 285
10-year publication summary
|
11
|
10
|
12
|
22
|
11
|
8
|
13
|
4
|
5
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Chevron U.S.A. Inc. | 3856 |
24 |
| IFP Energies Nouvelles | 2829 |
23 |
| Shell Internationale Research Maatschappij B.V. | 3722 |
16 |
| Shell USA, Inc. | 1137 |
13 |
| Shell Oil Company | 2153 |
10 |
| ExxonMobil Research And Engineering Company | 2659 |
9 |
| Uop LLC | 4188 |
9 |
| Advanced Refining Technologies LLC | 59 |
9 |
| Albemarle Netherlands B.V. | 81 |
8 |
| Instituto Mexicano Del Petroleo | 216 |
8 |
| Saudi Arabian Oil Company | 12446 |
8 |
| PetroChina Company Limited | 579 |
7 |
| Aramco Services Company | 3750 |
5 |
| China Petroleum & Chemical Corporation | 1783 |
5 |
| JX Nippon Oil & Energy Corporation | 1010 |
5 |
| Ketjen Netherlands B.V. | 23 |
5 |
| National Institute of Advanced Industrial Science and Technology | 3736 |
4 |
| Albemarle Europe SPRL | 37 |
3 |
| Eurecat S.A. | 92 |
3 |
| Nankai University | 214 |
3 |
| Other owners | 108 |