Patent holdings for IPC class B01D 45/04

Total number of patents in this class: 223

10-year publication summary

14
21
20
26
18
9
14
13
13
5
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Cummins Filtration IP, Inc.
808
9
Nitta Corporation
373
6
General Electric Company
13810
5
Pratt & Whitney Canada Corp.
4793
5
Hamilton Sundstrand Corporation
4891
5
The General Hospital Corporation
4740
5
Nabtesco Automotive Corporation
128
5
Calandra Resources, Inc.
7
5
Honeywell International Inc.
13540
4
Omachron Intellectual Property Inc.
910
4
Samsung Electronics Co., Ltd.
146811
3
Haven Technology Solutions LLC
21
3
MANN+HUMMEL GmbH
1760
3
Paragon Space Development Corporation
47
3
Rolls-Royce North American Technologies, Inc.
1169
3
Segretech Inc.
3
3
KF E&E Co., Ltd.
4
3
The Regents of the University of California
19961
2
Mitsubishi Heavy Industries, Ltd.
8752
2
Ford Global Technologies, LLC
20646
2
Other owners 143