- 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 57/02 - Protection of pipes or objects of similar shape against external or internal damage or wear against cracking or buckling
Patent holdings for IPC class F16L 57/02
Total number of patents in this class: 211
10-year publication summary
12
|
28
|
28
|
18
|
28
|
17
|
19
|
17
|
31
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Era Co., Ltd. | 28 |
7 |
Chevron U.S.A. Inc. | 3774 |
5 |
Repligen Corporation | 258 |
5 |
Lankhorst Engineered Products B.V. | 16 |
4 |
Tectran Mfg. Inc. | 67 |
4 |
Baker Hughes Energy Technology UK Limited | 168 |
4 |
NORMA Germany GmbH | 219 |
3 |
Saipem S.A. | 223 |
3 |
Swan Products, LLC | 78 |
3 |
Technip France | 737 |
3 |
Zibo Environmental Protection Technology Co., Ltd. | 83 |
3 |
Mearthane Products LLC | 18 |
3 |
Illinois Tool Works Inc. | 11152 |
2 |
Amgen Inc. | 3779 |
2 |
ABB Limited | 35 |
2 |
Balltec Limited | 31 |
2 |
BSH Bosch und Siemens Hausgerate GmbH | 3236 |
2 |
Changzhou University | 141 |
2 |
GE Oil & Gas UK Limited | 170 |
2 |
JFE Steel Corporation | 6067 |
2 |
Other owners | 148 |