- 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 55/28 - Constructional aspects
Patent holdings for IPC class F16L 55/28
Total number of patents in this class: 167
10-year publication summary
8
|
10
|
9
|
16
|
16
|
21
|
19
|
16
|
14
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rosen Swiss AG | 128 |
12 |
Petroleo Brasileiro S.A. - Petrobras | 730 |
5 |
Quest Integrity Group LLC | 30 |
5 |
iPEK International GmbH | 23 |
4 |
Saudi Arabian Oil Company | 11322 |
4 |
Seescan, Inc. | 457 |
4 |
TDW Delaware, Inc. | 163 |
4 |
Rosen IP AG | 37 |
4 |
INA Acquisition Corp. | 134 |
3 |
PII Limited | 37 |
3 |
Pipeline Innovations Limited | 3 |
3 |
S & B Technical Products, Inc. | 86 |
3 |
Servico Nacional de Aprendizagem Industrial - Departamento Regional de Santa Catarina - Senai/sc | 8 |
3 |
Massachusetts Institute of Technology | 9795 |
2 |
Athena Industrial Technologies Inc. | 16 |
2 |
Candu Energy Inc. | 47 |
2 |
China University of Petroleum (Beijing) | 258 |
2 |
Electricite de France | 695 |
2 |
e.V. Offshore Limited | 59 |
2 |
Fiberbuilt Manufacturing Inc. | 22 |
2 |
Other owners | 96 |