- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 31/00 - Free-piston pumps specially adapted for elastic fluidsSystems incorporating such pumps
Patent holdings for IPC class F04B 31/00
Total number of patents in this class: 41
10-year publication summary
|
4
|
3
|
5
|
5
|
1
|
2
|
0
|
2
|
3
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Gas Technology Institute | 354 |
4 |
| Endurance Lift Solutions, LLC | 34 |
3 |
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3038 |
3 |
| Board of Regents, The University of Texas System | 5717 |
2 |
| INFICON GmbH | 215 |
2 |
| New Fluid Technology Pty Ltd | 8 |
2 |
| Guangzhou Juneng Nano &bio Technology Co., Ltd. | 7 |
2 |
| Siemens AG | 24538 |
1 |
| Hon Hai Precision Industry Co., Ltd. | 4034 |
1 |
| Bicycle Tools Incorporated | 12 |
1 |
| Cooperatie Avebe U.A. | 73 |
1 |
| Engie | 183 |
1 |
| Fisher & Paykel Appliances Limited | 151 |
1 |
| Fu Tai Hua Industry (Shenzhen) Co., Ltd. | 312 |
1 |
| International Truck Intellectual Property Company, LLC | 464 |
1 |
| TRUMPF Werkzeugmaschinen GmbH + Co. KG | 554 |
1 |
| Westport Power Inc. | 125 |
1 |
| Whisper Tech Limited | 16 |
1 |
| Danfoss A/S | 1341 |
1 |
| TURBOALGOR S.r.l. | 7 |
1 |
| Other owners | 10 |