Patent holdings for IPC class F16L 11/04

Total number of patents in this class: 880

10-year publication summary

65
69
78
65
57
55
74
49
56
1
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Arkema France
3887
50
Saint-Gobain Performance Plastics Corporation
1025
42
Daikin Industries, Ltd.
9810
32
The Yokohama Rubber Co., Ltd.
3960
31
Sumitomo Riko Company Limited
1013
26
Bridgestone Corporation
7142
19
Denka Company Limited
2454
13
Junkosha Inc.
143
13
Zeon Corporation
3989
13
Kuraray Co., Ltd.
3463
12
Eaton Intelligent Power Limited
6293
12
Mitsui Chemicals, Inc.
3187
11
Mitsubishi Gas Chemical Company, Inc.
3343
11
Evonik Operations GmbH
4022
11
Fitt S.p.A.
209
10
Tokai Rubber Industries, Ltd.
163
10
Toyox Co., Ltd.
125
10
E. I. du Pont de Nemours and Company
4252
8
Gates Corporation
1181
8
Technip France
717
8
Other owners 530