- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/12 - Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
Patent holdings for IPC class F04B 1/12
Total number of patents in this class: 246
10-year publication summary
|
48
|
43
|
21
|
19
|
15
|
10
|
7
|
4
|
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 | 42614 |
50 |
| Caterpillar Inc. | 9527 |
15 |
| Kawasaki Heavy Industries, Limited | 1627 |
7 |
| Active Products Inc. | 24 |
7 |
| Komatsu Ltd. | 4528 |
6 |
| HYDAC Drive Center GmbH | 16 |
5 |
| Alfred Kärcher GmbH & Co. KG | 377 |
4 |
| MAHLE International GmbH | 2759 |
4 |
| Poclain Hydraulics Industrie | 240 |
4 |
| Hamilton Sundstrand Corporation | 4844 |
3 |
| Brueninghaus Hydromatik GmbH | 36 |
3 |
| Hanon Systems | 1917 |
3 |
| National Oilwell Varco, L.P. | 1661 |
3 |
| Hyundai Construction Equipment | 4 |
3 |
| Danfoss A/S | 1353 |
3 |
| Mixtron S.r.l. | 28 |
3 |
| Continental Automotive GmbH | 5018 |
2 |
| Toyota Industries Corporation | 1109 |
2 |
| Alfred Kaercher GmbH & Co. KG | 122 |
2 |
| Annovi Reverberi S.p.A. | 58 |
2 |
| Other owners | 115 |