- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 9/16 - Rigid pipes wound from sheets or strips, with or without reinforcement
Patent holdings for IPC class F16L 9/16
Total number of patents in this class: 187
10-year publication summary
|
17
|
16
|
14
|
18
|
9
|
11
|
6
|
10
|
9
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Huahan Science & Technology Co., Ltd. | 16 |
9 |
| Zhejiang Xinzhou Bamboo-based Composites Technology Co., Ltd | 28 |
8 |
| Uponor Infra Oy | 47 |
7 |
| JFE Steel Corporation | 7173 |
6 |
| Nanjing Dade Steel Pipe Co., Ltd. | 7 |
5 |
| China National Forest Xinzhou Bamboo Winding Development Co.,Ltd | 10 |
5 |
| Keystone Tower Systems, Inc. | 47 |
4 |
| Techreo LLC | 9 |
4 |
| Odfjell Oceanwind AS | 12 |
4 |
| Flowtite Technology AS | 6 |
3 |
| Intertape Polymer Corp. | 202 |
3 |
| ITI Scotland Limited | 146 |
3 |
| Nanjing Lianzhong Construction Engineering Technology Co., Ltd. | 18 |
3 |
| Sekisui Rib LOC Australia Pty Ltd | 19 |
3 |
| Toyo Kohan Co., Ltd. | 425 |
3 |
| Ao&g Holding B.V. | 3 |
3 |
| Shenzhen Jin Hong Machinery Co., Ltd | 3 |
3 |
| NexGen Pipes Pte. Ltd. | 3 |
3 |
| Airborne International B.V. | 27 |
2 |
| Arkema France | 4166 |
2 |
| Other owners | 104 |