Patent holdings for IPC class F16L 58/02

Total number of patents in this class: 108

10-year publication summary

13
17
9
10
12
8
4
5
7
4
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
Advanced Drainage Systems, Inc.
350
5
Baden-Württemberg Stiftung gGmbH
67
4
Petroliam Nasional Berhad (petronas)
335
4
Whitaker Chalk Swindle & Schwartz PLLC
7
4
ShawCor Ltd.
75
3
Field Joint Coatings Pty Ltd
3
3
Formula No. 37, LLC
6
3
E9 Treatments, Inc.
7
3
Halliburton Energy Services, Inc.
20946
2
3m Innovative Properties Company
17781
2
Cidra Corporate Services, Inc.
203
2
Envirologics Engineering Inc.
19
2
General Air Products, Inc.
9
2
Integrity Products & Supplies Inc.
19
2
Lindsay Corporation
242
2
LMK Technologies, LLC
104
2
Pipe Restoration Technologies, LLC
35
2
Samsung Heavy Ind. Co., Ltd.
237
2
Saudi Arabian Oil Company
13372
2
Tenaris Connections B.V.
172
2
Other owners 55