Patent holdings for IPC class D04H 1/587

Total number of patents in this class: 620

10-year publication summary

29
38
53
73
74
47
51
64
43
34
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026

Principal owners for this class

Owner
All patents
This class
Saint-Gobain Isover
678
60
Owens Corning Intellectual Capital, LLC
1722
57
Johns Manville
920
50
Rockwool A/S
833
47
3m Innovative Properties Company
17488
15
Wacker Chemie AG
2110
14
ROCKWOOL International A/S
281
14
Glatfelter Corporation
60
14
Rohm and Haas Company
2946
12
Carl Freudenberg KG
1486
12
Knauf Insulation SPRL
169
11
Saint-Gobain Adfors
127
11
OCV Intellectual Capital, LLC
151
9
Ursa Insulation, S.A.
31
9
Ahlstrom Oyj
202
8
BASF SE
21303
7
Nonwovenn Ltd
17
7
Glatfelter Gernsbach GmbH
46
6
Seiko Epson Corporation
20248
5
Nissin Chemical Industry Co., Ltd.
113
5
Other owners 247