Patent holdings for IPC class F16L 55/179

Total number of patents in this class: 191

10-year publication summary

21
13
22
20
24
15
9
14
9
3
2016 2017 2018 2019 2020 2021 2022 2023 2024 2025

Principal owners for this class

Owner
All patents
This class
LMK Technologies, LLC
102
43
Trelleborg Pipe Seals Duisburg GmbH
26
12
Picote Oy Ltd
30
10
Per Aarsleff A/S
27
10
Pipetronics GmbH & Co. KG
17
8
INA Acquisition Corp.
132
7
Picote Solutions Oy Ltd.
21
6
Sanexen Environmental Services Inc.
41
5
Liqui-force Sewer Services, Inc.
8
4
LMK Enterprises, Inc.
10
4
Bld Services, LLC
4
4
Curapipe System Ltd.
27
3
Liqui-Force Services (Ontario) Inc.
11
3
Perma-liner Industries, LLC
34
3
Improved Infrastructure Solutions, LLC,
5
3
Ibco Pty Ltd
6
3
Fer-pal Construction Ltd.
15
2
SAK Construction, LLC
10
2
Severn Trent Water Limited
7
2
TEAM Industrial Services, Inc.
69
2
Other owners 55