Patent holdings for IPC class D04H 1/4209

Total number of patents in this class: 485

10-year publication summary

31
34
44
48
33
48
46
43
51
12
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Saint-Gobain Isover
630
87
Rockwool A/S
779
56
ROCKWOOL International A/S
307
31
3m Innovative Properties Company
17849
29
Knauf Insulation SPRL
173
21
Ibiden Co., Ltd.
1735
20
Nichias Corporation
390
18
Owens Corning Intellectual Capital, LLC
1602
12
MAFTEC Co., Ltd.
31
12
Knauf Insulation, Inc.
189
10
Denka Company Limited
2533
7
Johns Manville
955
7
Mitsubishi Chemical Corporation
4485
6
Ursa Insulation, S.A.
30
6
The Procter & Gamble Company
22018
5
Nissin Chemical Industry Co., Ltd.
105
5
Zephyros, Inc.
653
5
Thermal Ceramics UK Limited
17
5
Toray Industries, Inc.
6891
4
Cabot Corporation
548
4
Other owners 135