Patent holdings for IPC class B01D 1/28

Total number of patents in this class: 381

10-year publication summary

25
38
38
42
30
32
37
25
31
22
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
DEKA Products Limited Partnership
1788
23
Energy Integration, Inc.
20
12
Uop LLC
4247
10
Aquafair AB
14
10
Aquaback Technologies, Inc.
8
7
GEA Wiegand GmbH
28
7
Toyo Engineering Corporation
145
7
Purestream Services, LLC
21
6
Saudi Arabian Oil Company
13428
6
Wga Water Global Access, S.L.
18
6
Bechtel Energy Technologies & Solutions, Inc.
72
5
Cameron International Corporation
1342
4
Doosan Heavy Industries & Construction Co., Ltd.
580
4
Vacom Systems, LLC
5
4
Massachusetts Institute of Technology
10117
3
Purdue Research Foundation
3676
3
Alcoa of Australia Limited
46
3
Caloris Engineering, LLC
26
3
ConocoPhillips Company
1683
3
Daicel Corporation
2384
3
Other owners 252