- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 1/22 - 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 having rotary cylinder block having two or more sets of cylinders or pistons
Patent holdings for IPC class F04B 1/22
Total number of patents in this class: 164
10-year publication summary
|
20
|
21
|
12
|
10
|
13
|
11
|
0
|
9
|
1
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Kawasaki Jukogyo Kabushiki Kaisha (trading as Kawasaki Heavy Industries, Ltd.) | 3090 |
21 |
| Komatsu Ltd. | 4528 |
17 |
| Robert Bosch GmbH | 42614 |
15 |
| KYB Corporation | 1355 |
12 |
| Kayaba Industry Co., Ltd. | 357 |
10 |
| Kabushiki Kaisha Toyota Jidoshokki | 1752 |
6 |
| Innas B.V. | 23 |
5 |
| Hitachi Construction Machinery Co., Ltd. | 2633 |
4 |
| Kawasaki Heavy Industries, Limited | 1627 |
3 |
| Toyota Industries Corporation | 1109 |
3 |
| Hydro-Gear Limited Partnership | 347 |
3 |
| Dana Motion Systems Italia S.r.l. | 104 |
3 |
| Qingdao Create Holdings Co., Ltd. | 6 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8685 |
2 |
| Caterpillar Inc. | 9527 |
2 |
| NTN Corporation | 4984 |
2 |
| Duke Engines Limited | 6 |
2 |
| HYDAC Drive Center GmbH | 16 |
2 |
| Kabushiki Kaisha Kawasaki Precision Machinery | 7 |
2 |
| KSB Aktiengesellschaft | 165 |
2 |
| Other owners | 45 |