Patent holdings for IPC class B01D 19/00

Total number of patents in this class: 3366

10-year publication summary

231
261
287
242
293
231
223
204
213
144
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Saudi Arabian Oil Company
13295
75
Hamilton Sundstrand Corporation
4902
48
DIC Corporation
3808
40
General Electric Company
13807
31
Kurita Water Industries Ltd.
1198
29
Mitsubishi Heavy Industries, Ltd.
8777
27
Halliburton Energy Services, Inc.
20949
24
IDEX Health & Science LLC
207
21
Lummus Technology LLC
440
19
Flamco B.V.
43
17
Precision Planting LLC
1113
17
Massachusetts Institute of Technology
10080
16
LG Chem, Ltd.
17636
14
Shashin Kagaku Co., Ltd.
50
14
Shell Internationale Research Maatschappij B.V.
3546
13
Pratt & Whitney Canada Corp.
4804
13
Chevron Lummus Global, LLC
34
13
Gambro Lundia AB
1375
13
Haven Technology Solutions LLC
20
13
Saudi Aramco Technologies Company
109
13
Other owners 2896