Patent holdings for IPC class B01D 45/00

Total number of patents in this class: 451

10-year publication summary

37
28
31
32
37
14
18
9
3
7
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Omachron Intellectual Property Inc.
903
17
Cummins Filtration IP, Inc.
808
13
Uop LLC
4244
10
Mitsubishi Heavy Industries, Ltd.
8712
6
NGK Insulators, Ltd.
4949
5
LiftRock LLC
9
5
General Electric Company
13767
4
LG Electronics Inc.
72962
4
The Boeing Company
20051
4
Tokyo Electron Limited
12694
4
Hamilton Sundstrand Corporation
4865
4
Donaldson Company, Inc.
1599
4
Dyson Technology Limited
3643
4
Rolls-Royce North American Technologies, Inc.
1168
4
Westerman, Inc.
8
4
Shell Internationale Research Maatschappij B.V.
3542
3
Pratt & Whitney Canada Corp.
4736
3
Shell Oil Company
2141
3
Alfa Laval Corporate AB
1311
3
ArcelorMittal Investigacion y Desarrollo SL
209
3
Other owners 344