- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F16L - Pipesjoints or fittings for pipessupports for pipes, cables or protective tubingmeans 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: 59
10-year publication summary
|
2
|
4
|
10
|
6
|
4
|
6
|
5
|
2
|
2
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Nitto Kohki Co., Ltd. | 259 |
6 |
| Raycon Industries, Inc. | 10 |
4 |
| WEH GmbH Verbindungstechnik | 25 |
3 |
| DÜRR SOMAC GmbH | 53 |
3 |
| Csir | 183 |
2 |
| Deb IP Limited | 91 |
2 |
| Elaflex Hiby Tanktechnik GmbH & Co. KG | 18 |
2 |
| FasTest, Inc. | 55 |
2 |
| Husqvarna AB | 2965 |
2 |
| Staubli Faverges | 158 |
2 |
| Faster S.r.l. | 39 |
2 |
| Knappco, LLC | 56 |
2 |
| Daisen Co., Ltd. | 10 |
1 |
| Delaware Capital Formation, Inc. | 480 |
1 |
| Eisele Pneumatics GmbH & Co. KG | 16 |
1 |
| Faster S.p.A. | 25 |
1 |
| Fresenius Medical Care Deutschland GmbH | 2193 |
1 |
| King CHO Machinery Industrial Co., Ltd | 7 |
1 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4011 |
1 |
| Lothar Schulz - Mechanik GmbH | 2 |
1 |
| Other owners | 19 |