- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 27/02 - Sulfur, selenium or tellurium; Compounds thereof
Patent holdings for IPC class B01J 27/02
Total number of patents in this class: 236
10-year publication summary
|
9
|
18
|
6
|
9
|
9
|
19
|
14
|
12
|
9
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Shell Internationale Research Maatschappij B.V. | 3792 |
16 |
| Chevron U.S.A. Inc. | 3774 |
15 |
| Shell Oil Company | 2196 |
14 |
| Nippon Oil Corporation | 340 |
6 |
| Tokyo Institute of Technology | 1367 |
6 |
| Umicore AG & Co. KG | 867 |
6 |
| Hanwha Solutions Corporation | 572 |
6 |
| Johnson Matthey Public Limited Company | 1852 |
5 |
| Shell USA, Inc. | 1074 |
5 |
| Uop LLC | 4083 |
4 |
| Chiyoda Corporation | 363 |
4 |
| Industrie de Nora S.p.A. | 274 |
4 |
| The Procter & Gamble Company | 22178 |
3 |
| Korea Institute of Science and Technology | 2022 |
3 |
| Hindustan Petroleum Corporation Limited | 191 |
3 |
| Kemira Oyj | 1167 |
3 |
| NOVA Chemicals (International) S.A. | 717 |
3 |
| Nanoco 2D Materials Limited | 16 |
3 |
| Lummus Technology LLC | 365 |
3 |
| Ketjen Limited Liability Company | 35 |
3 |
| Other owners | 121 |