Patent holdings for IPC class B01J 2/04

Total number of patents in this class: 505

10-year publication summary

32
47
38
48
42
44
30
25
19
13
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Ricoh Company, Ltd.
13266
18
Casale SA
572
11
Crititech, Inc.
76
11
Tekna Plasma Systems Inc.
69
11
Velico Medical, Inc.
88
11
Spraying Systems Co.
485
10
BASF SE
19740
9
Midatech Pharma (Wales) Limited
25
7
ZoomEssence, Inc.
47
7
The Procter & Gamble Company
22178
6
Wacker Chemie AG
2091
6
GEA Process Engineering A/S
150
6
Dressler Group GmbH & Co. KG
21
6
President and Fellows of Harvard College
5792
5
Bend Research, Inc.
41
5
LG Hausys, Ltd.
839
5
Resodyn Corporation
31
5
Toshiba Materials Co., Ltd.
600
5
Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation
6275
5
Hovione International Ltd
17
4
Other owners 352