- 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: 620
10-year publication summary
|
68
|
76
|
62
|
64
|
65
|
40
|
48
|
44
|
42
|
8
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sumitomo Wiring Systems, Ltd. | 9367 |
43 |
| Vallourec Oil and Gas France | 450 |
26 |
| Yazaki Corporation | 6282 |
17 |
| Sumitomo Electric Industries, Ltd. | 14131 |
12 |
| AutoNetworks Technologies, Ltd. | 5809 |
12 |
| The Boeing Company | 19843 |
8 |
| Tweedy's Speed Protectors, LLC | 13 |
8 |
| The Chugoku Electric Power Co., Inc. | 498 |
7 |
| Technip France | 737 |
7 |
| R&R IP Investments, LLC | 8 |
7 |
| Nippon Steel Corporation | 5649 |
6 |
| Protective Industries, Inc. | 58 |
6 |
| Saudi Arabian Oil Company | 11322 |
6 |
| Tectran Mfg. Inc. | 67 |
6 |
| Tenaris Connections B.V. | 171 |
6 |
| Drilltec Patents & Technologies Corporation | 19 |
5 |
| Hexagon Technology AS | 123 |
5 |
| Mitsubishi Hitachi Power Systems, Ltd. | 999 |
5 |
| Nippon Steel & Sumitomo Metal Corporation | 1990 |
5 |
| Repligen Corporation | 258 |
5 |
| Other owners | 418 |