- 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 9/21 - 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: 40
10-year publication summary
|
6
|
5
|
2
|
2
|
2
|
4
|
3
|
4
|
3
|
1
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| The Boeing Company | 19843 |
4 |
| Kyoraku Co., Ltd. | 485 |
3 |
| Airbus Operations GmbH | 3188 |
2 |
| Carrier Corporation | 4759 |
2 |
| Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. | 28 |
2 |
| Van-packer Co. | 6 |
2 |
| Saint-Gobain Isover Iberica, S.L. | 8 |
2 |
| Johnson Controls Tyco IP Holdings LLP | 1584 |
2 |
| Toyota Motor Corporation | 28582 |
1 |
| Hyundai Motor Company | 19021 |
1 |
| Kia Motors Corporation | 7946 |
1 |
| Audi AG | 7153 |
1 |
| Faurecia Interieur Industrie | 411 |
1 |
| INOAC Corporation | 172 |
1 |
| Long Pipes Pty Ltd. | 10 |
1 |
| Malmo Air AB | 3 |
1 |
| Motan Holding GmbH | 27 |
1 |
| Saint-Gobain Cristaleria, S.L. | 8 |
1 |
| SCHERDEL INNOTEC Forschungs-und Entwicklungs-GmbH | 28 |
1 |
| Toledo Molding & Die, Inc. | 17 |
1 |
| Other owners | 9 |