- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 37/28 - Phosphorising
Patent holdings for IPC class B01J 37/28
Total number of patents in this class: 299
10-year publication summary
41
|
33
|
21
|
21
|
20
|
13
|
12
|
16
|
5
|
6
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
IFP Energies Nouvelles | 2717 |
24 |
Total Research & Technology Feluy | 461 |
20 |
Shell Internationale Research Maatschappij B.V. | 3792 |
15 |
BASF Corporation | 2039 |
9 |
Shell Oil Company | 2196 |
9 |
Advanced Refining Technologies LLC | 61 |
9 |
China Petroleum & Chemical Corporation | 1623 |
9 |
Saudi Arabian Oil Company | 11322 |
9 |
ExxonMobil Research And Engineering Company | 2830 |
8 |
Indian Oil Corporation Limited | 329 |
8 |
Research Institute of Petroleum Processing, Sinopec | 387 |
8 |
Shell USA, Inc. | 1074 |
7 |
PetroChina Company Limited | 462 |
6 |
BASF SE | 19740 |
5 |
ExxonMobil Chemical Patents Inc. | 4286 |
5 |
Hindustan Petroleum Corporation Limited | 191 |
5 |
Johnson Matthey Public Limited Company | 1852 |
5 |
Saudi Basic Industries Corporation | 625 |
4 |
AMG Chemistry and Catalysis Consulting, LLC | 4 |
4 |
Bio2Electric, LLC | 8 |
4 |
Other owners | 126 |