- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 1/0439 - Supporting or guiding means for the pistons
Patent holdings for IPC class F04B 1/0439
Total number of patents in this class: 25
10-year publication summary
|
0
|
0
|
4
|
1
|
4
|
3
|
3
|
6
|
4
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 41786 |
6 |
| Schaeffler Technologies AG & Co. KG | 9395 |
2 |
| Poclain Hydraulics Industrie | 234 |
2 |
| BorgWarner France SAS | 61 |
2 |
| Delphi Technologies IP Limited | 354 |
2 |
| Aktiebolaget SKF | 2839 |
1 |
| BWI (Shanghai) Co., Ltd. | 30 |
1 |
| Idromeccanica Bertolini S.p.A. | 10 |
1 |
| ThyssenKrupp AG | 3207 |
1 |
| Wanner Engineering, Inc. | 53 |
1 |
| KNAUER Wissenschaftliche Gerãte GMBH | 5 |
1 |
| Innio Waukesha Gas Engines Inc. | 59 |
1 |
| Delft Offshore Turbine B.V. | 13 |
1 |
| ThyssenKrupp Dynamic Components GmbH | 26 |
1 |
| PHINIA Jersey Holdings LLC | 364 |
1 |
| Phinia Holdings Jersey Ltd | 325 |
1 |
| Other owners | 0 |