Patent holdings for IPC class B01D 63/02

Total number of patents in this class: 2186

10-year publication summary

179
158
151
152
154
185
163
133
113
92
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Kolon Industries, Inc.
1844
125
Toray Industries, Inc.
7116
108
Gambro Lundia AB
1398
85
Fresenius Medical Care Deutschland GmbH
2234
62
Asahi Kasei Kabushiki Kaisha
2838
58
DIC Corporation
3965
57
NOK Corporation
2305
40
Toyobo Co., Ltd.
2532
32
Terumo Kabushiki Kaisha
5820
30
Sumitomo Electric Industries, Ltd.
16396
25
Mitsubishi Rayon Co., Ltd.
853
25
Asahi Kasei Medical Co., Ltd.
232
21
Repligen Corporation
299
21
Mitsubishi Chemical Corporation
4726
19
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
4120
19
MANN+HUMMEL GmbH
1810
19
Membion GmbH
26
17
BL Technologies, Inc.
843
16
Toyobo MC Corporation
534
16
LG Electronics Inc.
75845
15
Other owners 1376