Patent holdings for IPC class B01D 19/00

Total number of patents in this class: 3339

10-year publication summary

246
267
308
255
317
247
233
204
215
112
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
12858
75
Hamilton Sundstrand Corporation
4832
48
DIC Corporation
3750
38
General Electric Company
13829
31
Kurita Water Industries Ltd.
1185
29
Mitsubishi Heavy Industries, Ltd.
8647
27
Halliburton Energy Services, Inc.
20749
24
IDEX Health & Science LLC
207
21
Flamco B.V.
44
18
Lummus Technology LLC
436
18
Massachusetts Institute of Technology
10013
16
Precision Planting LLC
1111
15
LG Chem, Ltd.
17561
14
Shashin Kagaku Co., Ltd.
49
14
Shell Internationale Research Maatschappij B.V.
3544
13
Tokyo Electron Limited
12540
13
Gambro Lundia AB
1365
13
Haven Technology Solutions LLC
21
13
Solventum Intellectual Properties Company
3309
13
Pratt & Whitney Canada Corp.
4602
12
Other owners 2874