Patent holdings for IPC class B01D 19/00

Total number of patents in this class: 3279

10-year publication summary

246
267
308
255
317
247
232
202
212
6
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
12404
70
Hamilton Sundstrand Corporation
4719
48
DIC Corporation
3659
35
General Electric Company
17803
30
Kurita Water Industries Ltd.
1150
29
Mitsubishi Heavy Industries, Ltd.
8515
28
Halliburton Energy Services, Inc.
20411
24
IDEX Health & Science LLC
206
21
Flamco B.V.
44
18
Lummus Technology LLC
391
17
Massachusetts Institute of Technology
9909
16
Shell Internationale Research Maatschappij B.V.
3721
15
Shashin Kagaku Co., Ltd.
48
14
Rtx Corporation
9077
14
LG Chem, Ltd.
17632
13
Tokyo Electron Limited
12090
13
Gambro Lundia AB
1369
13
Haven Technology Solutions LLC
21
13
Solventum Intellectual Properties Company
3311
13
Hewlett-Packard Development Company, L.P.
27476
12
Other owners 2823