Patent holdings for IPC class D21H 19/00

Total number of patents in this class: 168

10-year publication summary

6
7
16
15
11
12
14
11
6
10
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Stora Enso Oyj
1632
27
Omya International AG
773
7
Société des Produits Nestlé S.A.
9248
5
UPM-Kymmene Corporation
937
5
3m Innovative Properties Company
17853
3
Cargill, Incorporated
2888
3
Cascades Sonoco Inc.
29
3
Metso Paper, Inc.
426
3
Omya Development AG
93
3
Voith Patent GmbH
2756
3
BASF SE
20874
2
Philip Morris USA Inc.
704
2
Centre National de La Recherche Scientifique
10395
2
Dow Global Technologies LLC
10385
2
CJ Cheiljedang Corporation
3401
2
Kemira Oyj
1204
2
Kuraray Co., Ltd.
3496
2
Nalco Company
567
2
Nippon Paper Papylia Co., Ltd.
37
2
Oji Holdings Corporation
717
2
Other owners 86