Patent holdings for IPC class C02F 1/74

Total number of patents in this class: 587

10-year publication summary

54
61
54
63
46
51
49
50
46
22
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Evoqua Water Technologies LLC
914
13
Terralithium LLC
55
13
Orege
36
12
Lummus Technology LLC
439
9
Nanjing Yanchang Reaction Technology Research Institute Co. Ltd
120
9
Marathon Petroleum Company LP
361
7
Mitsubishi Hitachi Power Systems, Ltd.
993
7
Mitsubishi Heavy Industries, Ltd.
8685
6
Absolute Aeration
7
6
Bill Archer LLC
6
6
Siemens Energy, Inc.
1691
5
R.E. Prescott Co., Inc.
9
5
Sumitomo Metal Mining Co., Ltd.
1766
5
Centre National de La Recherche Scientifique
10408
4
Georgia Tech Research Corporation
2722
4
BL Technologies, Inc.
833
4
Cranfield University
85
4
Eco Too, LLC
8
4
James Richard Spears MD PLLC
9
4
Kurita Water Industries Ltd.
1190
4
Other owners 456