- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 55/165 - Devices for covering leaks in pipes or hoses, e.g. hose-menders from inside the pipe a pipe being inserted in the damaged section
Patent holdings for IPC class F16L 55/165
Total number of patents in this class: 726
10-year publication summary
|
62
|
64
|
71
|
79
|
56
|
50
|
53
|
48
|
50
|
21
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| TT Technologies, Inc. | 151 |
67 |
| INA Acquisition Corp. | 128 |
31 |
| LMK Technologies, LLC | 104 |
31 |
| Perma-liner Industries, LLC | 34 |
17 |
| SML Verwaltungs GmbH | 34 |
17 |
| Shell Internationale Research Maatschappij B.V. | 3548 |
15 |
| Brandenburger Patentverwertung GbR | 15 |
14 |
| Trelleborg Pipe Seals Duisburg GmbH | 26 |
14 |
| Per Aarsleff A/S | 30 |
14 |
| The Charles Machine Works, Inc. | 409 |
12 |
| Picote Oy Ltd | 30 |
11 |
| Sekisui Chemical Co., Ltd. | 3433 |
11 |
| Brandenburger Liner GmbH & Co. KG | 23 |
9 |
| Tracto-Technik GmbH & Co. KG | 170 |
9 |
| Subsurface,Inc. | 23 |
8 |
| Recyca-pipe of America L.L.C. | 10 |
8 |
| BKP Berolina Polyester GmbH & Co. KG | 22 |
7 |
| Buergofol GmbH | 12 |
7 |
| Titan CMP Solutions LLC | 8 |
7 |
| Warren Environmental & Coating, LLC | 58 |
7 |
| Other owners | 410 |