- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/2021 - Details or component parts characterised by the contact area between cylinder barrel and valve plate
Patent holdings for IPC class F04B 1/2021
Total number of patents in this class: 27
10-year publication summary
|
1
|
0
|
1
|
3
|
3
|
5
|
2
|
5
|
3
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Robert Bosch GmbH | 42632 |
5 |
| Komatsu Ltd. | 4528 |
4 |
| Danfoss A/S | 1354 |
4 |
| Danfoss Power Solutions Inc. | 111 |
2 |
| Hydro LEDUC | 10 |
2 |
| Honeywell International Inc. | 13525 |
1 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
1 |
| Hyundai Motor Company | 21897 |
1 |
| Kia Motors Corporation | 7757 |
1 |
| Hydro-Gear Limited Partnership | 347 |
1 |
| Innas B.V. | 23 |
1 |
| Kubota Corporation | 3883 |
1 |
| Parker Intangibles LLC | 1165 |
1 |
| Eaton Intelligent Power Limited | 5979 |
1 |
| Dana Motion Systems Italia S.r.l. | 104 |
1 |
| Other owners | 0 |