- 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 55/46 - Launching or retrieval of pigs or moles
Patent holdings for IPC class F16L 55/46
Total number of patents in this class: 264
10-year publication summary
16
|
20
|
17
|
27
|
35
|
35
|
31
|
21
|
20
|
5
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Saudi Arabian Oil Company | 11322 |
10 |
Subsea 7 Norway AS | 85 |
10 |
TDW Delaware, Inc. | 163 |
10 |
MarkWest Energy Partners, L.P., MarkWest Energy GP, L.L.C., Delaware limited liability company | 17 |
9 |
No-des, Inc. | 13 |
6 |
Petroleo Brasileiro S.A. - Petrobras | 730 |
5 |
Wells Fargo Bank, National Association | 2945 |
5 |
Quest Integrity Group LLC | 30 |
5 |
Halliburton Energy Services, Inc. | 20165 |
4 |
Chevron U.S.A. Inc. | 3774 |
4 |
ULC Robotics, Inc. | 9 |
4 |
Vetco Gray Scandinavia AS | 177 |
4 |
Weldfit Corporation | 6 |
4 |
ULC Technologies LLC | 23 |
4 |
ULC Business Holdings, LLC | 15 |
4 |
Shell Internationale Research Maatschappij B.V. | 3792 |
3 |
Shell Oil Company | 2196 |
3 |
Aramco Services Company | 3504 |
3 |
ConocoPhillips Company | 1657 |
3 |
Crossford International, LLC | 87 |
3 |
Other owners | 161 |