- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans 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: 269
10-year publication summary
|
14
|
26
|
27
|
28
|
28
|
20
|
19
|
17
|
16
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Saudi Arabian Oil Company | 13943 |
13 |
| TDW Delaware, Inc. | 164 |
11 |
| Subsea 7 Norway AS | 91 |
10 |
| MarkWest Energy Partners, L.P., MarkWest Energy GP, L.L.C., Delaware limited liability company | 10 |
8 |
| No-des, Inc. | 14 |
7 |
| Halliburton Energy Services, Inc. | 21169 |
5 |
| Petroleo Brasileiro S.A. - Petrobras | 925 |
5 |
| Quest Integrity USA, LLC | 60 |
5 |
| Seescan, Inc. | 548 |
5 |
| Wells Fargo Bank, National Association | 4334 |
5 |
| Chevron U.S.A. Inc. | 4073 |
4 |
| Aramco Services Company | 4162 |
4 |
| Milwaukee Electric Tool Corporation | 4796 |
4 |
| SOFEC, Inc. | 89 |
4 |
| ULC Robotics, Inc. | 9 |
4 |
| Vetco Gray Scandinavia AS | 172 |
4 |
| Shell Internationale Research Maatschappij B.V. | 3461 |
3 |
| Shell Oil Company | 2095 |
3 |
| Ecopetrol S.A. | 58 |
3 |
| John Anderson Construction, Inc., DBA AGI Industries | 8 |
3 |
| Other owners | 159 |