Patent holdings for IPC class F16L 58/02

Total number of patents in this class: 107

10-year publication summary

15
15
19
12
12
15
8
6
5
2
2015 2016 2017 2018 2019 2020 2021 2022 2023 2024

Principal owners for this class

Owner
All patents
This class
Whitaker Chalk Swindle & Schwartz PLLC
7
5
Advanced Drainage Systems, Inc.
304
4
Baden-Württemberg Stiftung gGmbH
64
4
Petroliam Nasional Berhad (petronas)
298
4
Field Joint Coatings Pty Ltd
3
3
Formula No. 37, LLC
6
3
E9 Treatments, Inc.
7
3
Halliburton Energy Services, Inc.
20165
2
3m Innovative Properties Company
18406
2
Brigham, Graham
3
2
Cidra Corporate Services, Inc.
208
2
Envirologics Engineering Inc.
22
2
Evolution Engineering Inc.
313
2
General Air Products, Inc.
9
2
Lindsay Corporation
229
2
LMK Technologies, LLC
114
2
Pipe Restoration Technologies, LLC
38
2
Samsung Heavy Ind. Co., Ltd.
240
2
Saudi Arabian Oil Company
11322
2
ShawCor Ltd.
79
2
Other owners 55