- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans for thermal insulation in general
- F16L 9/21 - Rigid pipes made of sound-absorbing materials or with sound-absorbing structure
Patent holdings for IPC class F16L 9/21
Total number of patents in this class: 42
10-year publication summary
|
2
|
2
|
2
|
4
|
3
|
4
|
3
|
3
|
1
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 20097 |
4 |
| Kyoraku Co., Ltd. | 521 |
3 |
| Honda Motor Co., Ltd. | 25871 |
2 |
| Airbus Operations GmbH | 3410 |
2 |
| Carrier Corporation | 3964 |
2 |
| Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. | 47 |
2 |
| Van-packer Co. | 7 |
2 |
| Saint-Gobain Isover Iberica, S.L. | 8 |
2 |
| Johnson Controls Tyco IP Holdings LLP | 379 |
2 |
| Toyota Motor Corporation | 34633 |
1 |
| Hyundai Motor Company | 23762 |
1 |
| Bayerische Motoren Werke Aktiengesellschaft | 15022 |
1 |
| Kia Motors Corporation | 7723 |
1 |
| Audi AG | 7475 |
1 |
| INOAC Corporation | 222 |
1 |
| Long Pipes Pty Ltd. | 10 |
1 |
| Malmo Air AB | 3 |
1 |
| Motan Holding GmbH | 37 |
1 |
| Saint-Gobain Cristaleria, S.L. | 8 |
1 |
| SCHERDEL INNOTEC Forschungs-und Entwicklungs-GmbH | 34 |
1 |
| Other owners | 10 |