- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F15B - Systems acting by means of fluids in generalfluid-pressure actuators, e.g. servomotorsdetails of fluid-pressure systems, not otherwise provided for
- F15B 21/10 - Delay devices or arrangements
Patent holdings for IPC class F15B 21/10
Total number of patents in this class: 28
10-year publication summary
|
2
|
0
|
3
|
2
|
3
|
3
|
2
|
6
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Swagelok Company | 319 |
5 |
| Safran Landing Systems | 738 |
4 |
| Maradyne Corporation | 20 |
2 |
| SMC Corporation | 1376 |
2 |
| Volvo Construction Equipment AB | 1212 |
2 |
| Caterpillar Inc. | 9852 |
1 |
| Carl Zeiss SMT GmbH | 3091 |
1 |
| Emerson Process Management Valve Automation, Inc. | 59 |
1 |
| Festo AG & Co. KG | 306 |
1 |
| Hold Well Industrial Co., Ltd | 6 |
1 |
| Kosmek Ltd. | 151 |
1 |
| Parker-Hannifin Corporation | 1006 |
1 |
| Parker Intangibles LLC | 1200 |
1 |
| Petroleo Brasileiro S.A. - Petrobras | 886 |
1 |
| Turk Traktor ve Ziraat Makineleri Anonim Sirketi | 4 |
1 |
| Festo SE & Co. KG | 401 |
1 |
| Trickstuff GmbH | 6 |
1 |
| Rheinisch-westfälische Technische Hochschule Aachen, Abgekürzt Rwth Aachen, Körperschaft des öffentlichen Rechts | 33 |
1 |
| Other owners | 0 |