Patent holdings for IPC class D01F 6/50

Total number of patents in this class: 73

10-year publication summary

3
5
9
9
5
4
6
5
0
1
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Kuraray Co., Ltd.
3601
15
Access Vascular, Inc.
38
5
The Procter & Gamble Company
21859
4
Carl Freudenberg KG
1494
3
Mitsubishi Gas Chemical Company, Inc.
3634
3
Nitto Denko Corporation
8565
2
Koken Ltd.
65
2
Nissan Chemical Industries, Ltd.
1636
2
South China University of Technology
1916
2
Toyama Prefecture
58
2
Aquapak IP Limited
29
2
Centre National de La Recherche Scientifique
11077
1
Panasonic Intellectual Property Management Co., Ltd.
34335
1
Daikin Industries, Ltd.
10513
1
The Johns Hopkins University
5922
1
Mitsubishi Chemical Corporation
4738
1
Kaneka Corporation
4745
1
Arkema France
4250
1
Association pour La Recherche et le Developpement de Methodes et Processus Industriels-armines
71
1
British American Tobacco (Investments) Limited
999
1
Other owners 22