Patent holdings for IPC class B01D 63/04

Total number of patents in this class: 586

10-year publication summary

49
41
51
46
50
41
44
42
40
21
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Kolon Industries, Inc.
1856
36
Toray Industries, Inc.
7149
24
Sumitomo Electric Industries, Ltd.
16368
13
BL Technologies, Inc.
838
13
DIC Corporation
3995
12
Membion GmbH
26
12
Evoqua Water Technologies LLC
927
11
Asahi Kasei Kabushiki Kaisha
2860
10
Gambro Lundia AB
1403
10
LG Electronics Inc.
76087
9
Saudi Arabian Oil Company
14369
9
NOK Corporation
2330
8
Hamilton Sundstrand Corporation
5011
7
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
4137
7
Toyobo Co., Ltd.
2544
7
Air Liquide Advanced Technologies U.S. LLC
64
6
MANN+HUMMEL GmbH
1814
6
Pall Corporation
335
6
The University of Manchester
454
6
Doosan Enerbility Co., Ltd.
290
6
Other owners 368