- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F16J - Pistons; cylinders; pressure vessels in general; sealings
- F16J 9/18 - Joint-closures with separate bridge-elements
Patent holdings for IPC class F16J 9/18
Total number of patents in this class: 17
10-year publication summary
|
1
|
1
|
0
|
0
|
3
|
0
|
6
|
1
|
1
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Mainspring Energy, Inc. | 98 |
4 |
| Burckhardt Compression AG | 116 |
3 |
| Acd, LLC | 21 |
2 |
| Delaney Technologies Inc. | 13 |
2 |
| Rubberatkins Limited | 32 |
2 |
| Denso Corporation | 23338 |
1 |
| EtaGen, Inc. | 27 |
1 |
| MTU Aero Engines GmbH | 565 |
1 |
| Peugeot Citroen Automobiles SA | 1903 |
1 |
| Other owners | 0 |