- All sections
- B - Performing operations; transporting
- B01J - Chemical or physical processes, e.g. catalysis or colloid chemistry; their relevant apparatus
- B01J 4/02 - Feed devices; Feed or outlet control devices for feeding measured quantities of reagents
Patent holdings for IPC class B01J 4/02
Total number of patents in this class: 210
10-year publication summary
17
|
18
|
15
|
21
|
19
|
28
|
22
|
16
|
11
|
2
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Chevron Phillips Chemical Company LP | 1779 |
8 |
Toray Engineering Co., Ltd. | 438 |
5 |
Casale SA | 572 |
5 |
Musashi Engineering, Inc. | 241 |
5 |
BASF SE | 19740 |
3 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
3 |
ExxonMobil Chemical Patents Inc. | 4286 |
3 |
Chemspeed Technologies AG | 30 |
3 |
Fujikin Incorporated | 671 |
3 |
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
3 |
Osaka University | 3143 |
3 |
Rorze Corporation | 58 |
3 |
Saraya Co., Ltd. | 113 |
3 |
Rorze LifeScience Inc. | 10 |
3 |
Robert Bosch GmbH | 40953 |
2 |
Commissariat à l'énergie atomique et aux energies alternatives | 10525 |
2 |
Purdue Research Foundation | 3277 |
2 |
Anaero Technology Ltd | 3 |
2 |
Bio-Rad Laboratories, Inc. | 1592 |
2 |
CEM Corporation | 101 |
2 |
Other owners | 145 |