Patent holdings for IPC class B01D 47/02

Total number of patents in this class: 373

10-year publication summary

25
24
35
49
36
30
51
62
31
13
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
King Fahd University of Petroleum and Minerals
779
7
ResMed Pty Ltd
1995
7
Chiyoda Corporation
363
5
Daewoo Electronics Corporation
167
5
Haier Smart Home Co., Ltd.
4882
5
Edwards Vacuum LLC
155
4
King Abdullah University of Science and Technology
1703
4
Midea Group Co., Ltd.
4025
4
Ohio University
375
4
Proton Power, Inc.
31
4
Starklab
20
4
Zibo Creation of Mechanical and Electrical Technology Co., Ltd
40
4
Lowcarbon Co., Ltd
79
4
Air Products and Chemicals, Inc.
1448
3
CRI ehf
12
3
N/C Quest, Inc.
24
3
Pacific Green Technologies Inc.
11
3
Qingdao Haier Refrigerator Co., Ltd
1378
3
Schubert Environmental Equipment, Inc.
6
3
Valli Zabban S.p.A.
3
3
Other owners 291