Patent holdings for IPC class D21C 11/00

Total number of patents in this class: 717

10-year publication summary

80
76
49
64
62
53
37
42
43
25
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Andritz Oy
282
43
Valmet AB
503
42
UPM-Kymmene Corporation
937
28
Stora Enso Oyj
1634
26
Valmet Technologies Oy
287
25
FPInnovations
244
14
GranBio Intellectual Property Holdings, LLC
119
13
SCA Forest Products AB
81
12
Andritz Inc.
333
9
Metsa Fibre Oy
35
9
International N&h Denmark ApS
323
9
Veolia Water Technologies, Inc.
77
8
Pierson Capital Environmental (Beijing) Limited
10
8
Licella Pty Limited
28
7
Voith Patent GmbH
2756
7
Suzano S.A.
199
7
Canfor Pulp Ltd.
16
6
Mondi AG
155
6
Södra Skogsägarna ekonomisk förening
74
6
VIA Separations, Inc.
26
6
Other owners 426