Patent holdings for IPC class F16L 58/08

Total number of patents in this class: 149

10-year publication summary

12
21
12
19
18
19
12
6
12
5
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Vallourec Oil and Gas France
450
18
Technip France
737
8
Nippon Steel & Sumitomo Metal Corporation
1990
5
Saudi Arabian Oil Company
11322
5
Toyo Kohan Co., Ltd.
413
5
Nippon Steel Corporation
5649
4
J. Ray McDermott, S.A.
59
3
JFE Steel Corporation
6067
3
Hitachi Metals, Ltd.
2175
2
Caterpillar Inc.
8877
2
Panasonic Intellectual Property Management Co., Ltd.
27812
2
Aculon, Inc.
59
2
Bull Moose Tube Company
14
2
Cooper-Standard Automotive Inc.
261
2
Grohe AG
1024
2
H. BUTTING GmbH & Co. KG
18
2
Kolon Industries, Inc.
1506
2
MariCap Oy
182
2
Modumetal, Inc.
72
2
Oceanit Laboratories, Inc.
69
2
Other owners 74