Patent holdings for IPC class B01D 63/02

Total number of patents in this class: 2104

10-year publication summary

176
171
149
141
140
141
164
150
123
98
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Kolon Industries, Inc.
1721
112
Toray Industries, Inc.
7015
108
Gambro Lundia AB
1356
83
Asahi Kasei Kabushiki Kaisha
2719
57
Fresenius Medical Care Deutschland GmbH
2189
57
DIC Corporation
3854
50
NOK Corporation
2238
37
Toyobo Co., Ltd.
2471
32
Terumo Kabushiki Kaisha
5645
29
Sumitomo Electric Industries, Ltd.
15789
25
Mitsubishi Rayon Co., Ltd.
892
25
Asahi Kasei Medical Co., Ltd.
234
21
Repligen Corporation
291
20
Mitsubishi Chemical Corporation
4612
19
MANN+HUMMEL GmbH
1777
19
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
4000
18
Membion GmbH
27
17
BL Technologies, Inc.
839
16
LG Electronics Inc.
73825
15
Asahi Kasei Chemicals Corporation
622
15
Other owners 1329