Patent holdings for IPC class F16L 1/038

Total number of patents in this class: 29

10-year publication summary

3
5
3
1
1
2
4
2
1
0
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Long Pipes Pty Ltd.
10
4
NexGen Pipes Pte. Ltd.
3
3
Brasfond USA Corp.
4
2
Terra Technologies LLC
19
2
Shell Internationale Research Maatschappij B.V.
3553
1
Shell Oil Company
2138
1
DellCron AB
11
1
Frank's International, LLC
239
1
Nanjing Lianzhong Construction Engineering Technology Co., Ltd.
18
1
Pipeline Induction Heat Limited
26
1
Polypipe Limited
91
1
Purapipe Holding Ltd.
2
1
Shonan Gosei-Jushi Seisakusho K.K.
38
1
Smart Pipe Company, Inc.
26
1
Walk Safe Innovations, LLC
2
1
Rush Sales Company, Inc.
2
1
Shonan Gosei-kushi Seisakusho K.K.
1
1
Novoter AG
2
1
Advanced Intellectual Holdings Pty Ltd
1
1
Seoul Institute of Technology
6
1
Other owners 2