Patent holdings for IPC class B01D 21/00

Total number of patents in this class: 1635

10-year publication summary

144
152
161
185
157
184
162
145
104
27
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Adey Holdings (2008) Limited
322
24
Veolia Water Solutions & Technologies Support
547
16
Flamco B.V.
85
12
Halliburton Energy Services, Inc.
20165
11
Evoqua Water Technologies LLC
904
11
FloDesign Sonics, Inc.
186
10
Hydro International Limited,
86
9
Smith & Loveless, Inc.
109
9
Commissariat à l'énergie atomique et aux energies alternatives
10525
8
Meurer Research, Inc.
32
8
Saudi Arabian Oil Company
11322
8
Bio Clean Environmental Services, Inc.
32
7
Cameron International Corporation
1305
7
Contech Engineered Solutions LLC
208
7
Ovivo Inc.
137
7
Sulzer Management AG
613
7
BASF SE
19740
6
Becton, Dickinson and Company
6712
6
Dow Global Technologies LLC
10147
6
ExxonMobil Upstream Research Company
2525
6
Other owners 1450