- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16L - Pipes; joints or fittings for pipes; supports for pipes, cables or protective tubing; means for thermal insulation in general
- F16L 57/00 - Protection of pipes or objects of similar shape against external or internal damage or wear
Patent holdings for IPC class F16L 57/00
Total number of patents in this class: 646
10-year publication summary
|
76
|
62
|
64
|
65
|
40
|
48
|
45
|
44
|
38
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Wiring Systems, Ltd. | 9980 |
50 |
| Vallourec Oil and Gas France | 461 |
25 |
| Yazaki Corporation | 6454 |
17 |
| Sumitomo Electric Industries, Ltd. | 14914 |
13 |
| AutoNetworks Technologies, Ltd. | 6298 |
13 |
| Tweedy's Speed Protectors, LLC | 14 |
9 |
| The Boeing Company | 19900 |
8 |
| Tenaris Connections B.V. | 185 |
8 |
| The Chugoku Electric Power Co., Inc. | 505 |
7 |
| Technip France | 717 |
7 |
| R&R IP Investments, LLC | 8 |
7 |
| Nippon Steel Corporation | 5982 |
6 |
| Protective Industries, Inc. | 57 |
6 |
| Saudi Arabian Oil Company | 12390 |
6 |
| Tectran Mfg. Inc. | 69 |
6 |
| Drilltec Patents & Technologies Corporation | 19 |
5 |
| Hexagon Technology AS | 131 |
5 |
| Mitsubishi Hitachi Power Systems, Ltd. | 996 |
5 |
| Nippon Steel & Sumitomo Metal Corporation | 1988 |
5 |
| Repligen Corporation | 259 |
5 |
| Other owners | 433 |