Patent holdings for IPC class B01J 31/28

Total number of patents in this class: 385

10-year publication summary

22
22
22
37
21
20
21
21
16
3
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Kyushu University, National University Corporation
1682
7
Organo Corporation
527
7
The University of Tokyo
4297
7
Sumitomo Chemical Company, Limited
9051
6
Crasus Chemical Inc.
48
6
LG Chem, Ltd.
17745
5
Soochow University
1759
5
Nissan Chemical Corporation
2132
5
National Institute of Advanced Industrial Science and Technology
3796
4
Bluestar Silicones France.
72
4
Kurita Water Industries Ltd.
1246
4
Takasago International Corporation
405
4
The Regents of the University of California
20410
3
Nissan Motor Co., Ltd.
12698
3
Rohm and Haas Company
2941
3
Dow Global Technologies LLC
10707
3
PPG Industries Ohio, Inc.
3384
3
The Board of Trustees of the University of Illinois
2737
3
Wako Pure Chemical Industries, Ltd.
130
3
Japan Science and Technology Agency
1254
3
Other owners 297