Patent holdings for IPC class B01J 2/04

Total number of patents in this class: 506

10-year publication summary

32
45
39
36
30
23
19
24
16
3
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Ricoh Company, Ltd.
13332
18
Velico Medical, Inc.
124
14
Crititech, Inc.
74
12
Casale SA
633
10
Spraying Systems Co.
499
10
Tekna Plasma Systems Inc.
68
10
BASF SE
21151
9
ZoomEssence, Inc.
54
7
The Procter & Gamble Company
21979
6
Midatech Pharma (Wales) Limited
22
6
Stamicarbon B.V.
308
6
Toshiba Materials Co., Ltd.
601
6
Wacker Chemie AG
2103
6
GEA Process Engineering A/S
170
6
Dressler Group GmbH & Co. KG
16
6
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation
6218
6
LG Hausys, Ltd.
818
5
Pyrogenesis Canada, Inc.
66
5
Resodyn Corporation
31
5
Bend Research, Inc.
38
4
Other owners 349