Patent holdings for IPC class D01F 6/60

Total number of patents in this class: 473

10-year publication summary

33
28
42
44
44
33
45
54
39
10
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Toray Industries, Inc.
6652
42
Teijin Aramid B.V.
182
26
E. I. du Pont de Nemours and Company
4345
19
Kolon Industries, Inc.
1506
18
Ascend Performance Materials Operations LLC
260
12
Kordsa Teknik Tekstil A.S.
103
12
DuPont Safety & Construction, Inc.
676
11
Teijin Limited
1216
10
Cibt America Inc.
83
10
Cathay Biotech Inc.
81
10
Advansix Resins & Chemicals LLC
278
9
INVISTA Technologies S.a.r.l.
450
9
Mitsubishi Gas Chemical Company, Inc.
3188
9
Teijin Techno Products Limited
24
8
Denka Company Limited
2189
7
DSM IP Assets B.V.
5856
6
President and Fellows of Harvard College
5792
5
INVISTA North America S.a.r.l.
182
5
Kureha Corporation
1026
5
Rhodia Poliamida e Especialidades Ltda
58
5
Other owners 235