Patent holdings for IPC class B01D 71/56

Total number of patents in this class: 1163

10-year publication summary

99
100
94
103
91
83
84
93
70
0
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Toray Industries, Inc.
7016
144
Nitto Denko Corporation
8358
62
LG Chem, Ltd.
17704
55
Dow Global Technologies LLC
10587
43
Asahi Kasei Kabushiki Kaisha
2716
35
FUJIFILM Corporation
29871
27
Aquaporin A/S
74
22
DDP Specialty Electronic Materials US, LLC
843
22
King Fahd University of Petroleum and Minerals
1387
21
Kurita Water Industries Ltd.
1235
21
Toray Advanced Materials Korea Inc.
272
19
Entegris, Inc.
1922
18
Solventum Intellectual Properties Company
3341
17
Unitika Ltd.
445
15
3m Innovative Properties Company
17653
14
Saudi Arabian Oil Company
13681
14
National University Corporation Kobe University
538
11
National University of Singapore
2517
11
Vontron Technology Co., Ltd.
35
11
BL Technologies, Inc.
837
10
Other owners 571