Patent holdings for IPC class D04H 1/64

Total number of patents in this class: 618

10-year publication summary

39
34
43
57
43
33
35
50
40
7
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Rockwool A/S
814
59
Saint-Gobain Isover
663
51
Owens Corning Intellectual Capital, LLC
1634
48
Johns Manville
933
45
ROCKWOOL International A/S
294
31
3m Innovative Properties Company
17600
20
Knauf Insulation SPRL
175
14
Wacker Chemie AG
2103
14
Knauf Insulation, Inc.
188
11
OCV Intellectual Capital, LLC
162
11
Rohm and Haas Company
2946
10
Cargill, Incorporated
2950
9
Georgia-Pacific Chemicals LLC
134
8
Saint-Gobain Adfors
122
8
OrganoClick AB
71
6
Ursa Insulation, S.A.
31
6
Toray Industries, Inc.
7023
5
Arkema France
4168
5
Carl Freudenberg KG
1417
5
Nonwovenn Ltd
15
5
Other owners 247