Patent holdings for IPC class B01J 2/04

Total number of patents in this class: 505

10-year publication summary

38
49
42
44
32
27
20
25
16
9
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Ricoh Company, Ltd.
13333
18
Velico Medical, Inc.
131
15
Crititech, Inc.
74
12
Spraying Systems Co.
504
10
Tekna Plasma Systems Inc.
66
10
BASF SE
21308
9
Casale SA
634
9
ZoomEssence, Inc.
54
7
The Procter & Gamble Company
21849
6
Stamicarbon B.V.
321
6
Toshiba Materials Co., Ltd.
563
6
Wacker Chemie AG
2109
6
GEA Process Engineering A/S
177
6
Dressler Group GmbH & Co. KG
16
6
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation
6177
6
LG Hausys, Ltd.
806
5
Midatech Pharma (Wales) Limited
18
5
Pyrogenesis Canada, Inc.
66
5
Resodyn Corporation
31
5
Bend Research, Inc.
38
4
Other owners 349