Patent holdings for IPC class D04H 1/64

Total number of patents in this class: 646

10-year publication summary

47
42
53
64
55
43
42
58
47
36
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Rockwool A/S
834
61
Owens Corning Intellectual Capital, LLC
1725
54
Saint-Gobain Isover
678
53
Johns Manville
921
44
ROCKWOOL International A/S
282
31
3m Innovative Properties Company
17478
22
Knauf Insulation SPRL
169
14
Wacker Chemie AG
2112
14
Rohm and Haas Company
2951
11
Knauf Insulation, Inc.
183
11
OCV Intellectual Capital, LLC
151
11
Cargill, Incorporated
2964
9
Saint-Gobain Adfors
127
9
OrganoClick AB
70
7
Arkema France
4242
6
Carl Freudenberg KG
1488
6
Ursa Insulation, S.A.
31
6
Ahlstrom Oyj
203
6
Nonwovenn Ltd
17
6
Toray Industries, Inc.
7113
5
Other owners 260