Patent holdings for IPC class C02F 1/74

Total number of patents in this class: 591

10-year publication summary

54
61
54
63
46
51
50
50
46
25
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Evoqua Water Technologies LLC
916
14
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
365
7
Mitsubishi Hitachi Power Systems, Ltd.
993
7
Mitsubishi Heavy Industries, Ltd.
8703
6
Absolute Aeration
7
6
Bill Archer LLC
6
6
Siemens Energy, Inc.
1688
5
R.E. Prescott Co., Inc.
9
5
Sumitomo Metal Mining Co., Ltd.
1777
5
Centre National de La Recherche Scientifique
10418
4
Georgia Tech Research Corporation
2729
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.
1191
4
Other owners 459