Patent holdings for IPC class B01D 71/56

Total number of patents in this class: 1178

10-year publication summary

99
100
94
103
91
83
84
93
70
13
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Toray Industries, Inc.
7018
146
Nitto Denko Corporation
8412
63
LG Chem, Ltd.
17744
55
Dow Global Technologies LLC
10699
42
Asahi Kasei Kabushiki Kaisha
2742
35
FUJIFILM Corporation
30016
27
King Fahd University of Petroleum and Minerals
1432
23
Aquaporin A/S
74
22
DDP Specialty Electronic Materials US, LLC
845
22
Kurita Water Industries Ltd.
1246
21
Toray Advanced Materials Korea Inc.
277
19
Entegris, Inc.
1950
18
Solventum Intellectual Properties Company
3346
17
Saudi Arabian Oil Company
13839
16
Unitika Ltd.
443
16
3m Innovative Properties Company
17607
14
National University Corporation Kobe University
539
11
National University of Singapore
2538
11
Vontron Technology Co., Ltd.
35
11
BL Technologies, Inc.
838
10
Other owners 579