- 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 9/00 - Rigid pipes
Patent holdings for IPC class F16L 9/00
Total number of patents in this class: 333
10-year publication summary
|
38
|
34
|
24
|
36
|
36
|
32
|
11
|
15
|
16
|
2
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mestek Machinery, Inc. | 59 |
6 |
| Nippon Steel Corporation | 5649 |
6 |
| The Boeing Company | 19843 |
5 |
| Sumitomo Wiring Systems, Ltd. | 9367 |
5 |
| Hamilton Sundstrand Corporation | 4525 |
5 |
| NOVA Chemicals (International) S.A. | 717 |
5 |
| Toyota Motor Corporation | 28582 |
4 |
| Durasystems Barriers, Inc. | 22 |
4 |
| JFE Steel Corporation | 6067 |
4 |
| Kyoraku Co., Ltd. | 485 |
4 |
| Evonik Operations GmbH | 3879 |
4 |
| Benteler Steel/Tube GmbH | 37 |
4 |
| Rtx Corporation | 8674 |
4 |
| BASF SE | 19740 |
3 |
| Ford Global Technologies, LLC | 19702 |
3 |
| Ibiden Co., Ltd. | 1724 |
3 |
| Acergy France SAS | 124 |
3 |
| Borealis AG | 2558 |
3 |
| Chevron Phillips Chemical Company LP | 1779 |
3 |
| Imperial College Innovations Limited | 486 |
3 |
| Other owners | 252 |