- 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 37/44 - Couplings of the quick-acting type with fluid cut-off means with fluid cut-off means in only one of two pipe-end fittings with one lift valve being actuated to initiate the flow through the coupling after the two coupling parts are locked against withdrawal
Patent holdings for IPC class F16L 37/44
Total number of patents in this class: 58
10-year publication summary
|
5
|
2
|
4
|
10
|
7
|
4
|
6
|
6
|
2
|
0
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nitto Kohki Co., Ltd. | 280 |
6 |
| Raycon Industries, Inc. | 8 |
4 |
| WEH GmbH Verbindungstechnik | 24 |
3 |
| DÜRR SOMAC GmbH | 51 |
3 |
| Csir | 185 |
2 |
| Deb IP Limited | 101 |
2 |
| FasTest, Inc. | 52 |
2 |
| NORMA Germany GmbH | 219 |
2 |
| Staubli Faverges | 162 |
2 |
| Knappco, LLC | 55 |
2 |
| Angermeier, Kelvin | 1 |
1 |
| Carr, Cameron | 1 |
1 |
| Daisen Co., Ltd. | 9 |
1 |
| Dean Edward Mackey | 1 |
1 |
| Delaware Capital Formation, Inc. | 580 |
1 |
| Eisele Pneumatics GmbH & Co. KG | 16 |
1 |
| Elaflex Hiby Tanktechnik GmbH & Co. KG | 18 |
1 |
| Faster S.p.A. | 27 |
1 |
| Fresenius Medical Care Deutschland GmbH | 2100 |
1 |
| Grant Prideco, Inc. | 384 |
1 |
| Other owners | 20 |