Patent holdings for IPC class D21H 19/60

Total number of patents in this class: 212

10-year publication summary

9
17
15
21
11
13
19
24
20
8
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
WestRock MWV, LLC
336
20
Kuraray Co., Ltd.
3506
14
Kemira Oyj
1207
9
Stora Enso Oyj
1647
9
Hewlett-Packard Development Company, L.P.
25864
8
BASF SE
20940
5
Billerud AB
126
5
UPM-Kymmene Corporation
936
5
Dow Global Technologies LLC
10360
4
Nippon Paper Industries Co., Ltd.
832
4
Koehler Innovation & Technology GmbH
46
4
Société des Produits Nestlé S.A.
9289
3
Rohm and Haas Company
2880
3
delfortgroup AG
151
3
Imerys Minerals Limited
118
3
Mitsubishi Paper Mills Limited
232
3
Wacker Chemical Corporation
30
3
Ahlstrom Oyj
104
3
Ahlstrom-munksjo Oyj
222
3
Artemyn UK Limited
21
3
Other owners 98