- 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 9/19 - Multi-channel pipes or pipe assemblies
Patent holdings for IPC class F16L 9/19
Total number of patents in this class: 211
10-year publication summary
|
20
|
24
|
30
|
24
|
20
|
17
|
18
|
8
|
16
|
3
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Milliken & Company | 1253 |
7 |
| Rtx Corporation | 8674 |
7 |
| Woodward, Inc. | 602 |
6 |
| Airbus Operations GmbH | 3188 |
5 |
| Acergy France SAS | 124 |
5 |
| Trinity Bay Equipment Holdings, LLC | 244 |
5 |
| The Boeing Company | 19843 |
4 |
| Ior Canada Ltd. | 15 |
4 |
| Subsea 7 Norway AS | 85 |
4 |
| Technip France | 737 |
4 |
| General Electric Company | 18133 |
3 |
| Airbus Operations S.A.S. | 2407 |
3 |
| CJS Production Technologies Inc. | 5 |
3 |
| CCI Piping System, LLC | 3 |
3 |
| Rolls-Royce PLC | 2944 |
2 |
| Hamilton Sundstrand Corporation | 4525 |
2 |
| Chevron U.S.A. Inc. | 3774 |
2 |
| Aker Kvaerner Subsea AS | 12 |
2 |
| Aker Solutions AS | 226 |
2 |
| DIC Corporation | 3597 |
2 |
| Other owners | 136 |