Patent holdings for IPC class B01D 1/14

Total number of patents in this class: 407

10-year publication summary

41
56
41
43
36
33
39
33
22
1
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Gradiant Corporation
129
16
Heartland Water Technology, Inc.
31
13
Massachusetts Institute of Technology
9913
11
Natural Extraction Systems, LLC
99
9
Cleantek Industries Inc.
30
9
King Fahd University of Petroleum & Minerals
164
8
Ecovap, Inc.
19
8
Energy Water Solutions, LLC
11
7
XDI Holdings, LLC
38
7
Micronic Technologies, Inc.
16
6
Shell Internationale Research Maatschappij B.V.
3722
5
Biotage AB
92
5
Heat IP Holdco, LLC
48
5
Heartland Technology Partners LLC
19
4
King Fahd University of Petroleum and Minerals
1008
4
Purestream Services, LLC
21
4
V-stax, LLC
8
4
Elavo Cleantech Ltd.
7
4
Siemens AG
24565
3
Shell Oil Company
2153
3
Other owners 272