Patent holdings for IPC class B01D 1/14

Total number of patents in this class: 440

10-year publication summary

56
41
43
36
33
39
34
25
20
13
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Gradiant Corporation
147
16
Heartland Water Technology, Inc.
34
14
Natural Extraction Systems, LLC
124
13
Massachusetts Institute of Technology
10254
11
King Fahd University of Petroleum & Minerals
194
8
Ecovap, Inc.
19
8
Energy Water Solutions, LLC
12
7
Cleantek Industries Inc.
21
7
Biotage AB
96
6
Micronic Technologies, Inc.
15
6
Heat IP Holdco, LLC
49
6
Shell Internationale Research Maatschappij B.V.
3398
5
Elavo Energy Solutions Ltd.
10
5
Heartland Technology Partners LLC
17
4
King Fahd University of Petroleum and Minerals
1576
4
Purestream Services, LLC
19
4
Saudi Arabian Oil Company
14248
4
Velico Medical, Inc.
131
4
V-stax, LLC
31
4
Siemens AG
24020
3
Other owners 301