Patent holdings for IPC class D21C 11/12

Total number of patents in this class: 156

10-year publication summary

9
12
14
12
9
18
14
9
10
4
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Andritz Oy
282
20
Andritz Inc.
333
14
Valmet Technologies Oy
287
13
Varo Teollisuuspalvelut Oy
13
8
Huntsman International LLC
719
7
Veolia Water Technologies, Inc.
77
7
Limearc Process AB
6
6
The Babcock & Wilcox Company
157
5
Valmet Automation Oy
111
5
Boildec Oy
5
4
Chemrec Aktiebolag
5
4
Metso Power Oy
31
4
Arkema France
4036
3
International Paper Company
791
3
UPM-Kymmene Corporation
937
3
Valmet AB
503
3
Imam Mohammad Ibn Saud Islamic University
86
3
Cascades Canada ULC
618
2
M-real Oyj
29
2
Metso Power AB
19
2
Other owners 38