- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 27/08 - Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
Patent holdings for IPC class F04B 27/08
Total number of patents in this class: 424
10-year publication summary
|
30
|
19
|
17
|
19
|
9
|
5
|
9
|
4
|
7
|
3
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Sanden Corporation | 1023 |
55 |
| Doowon Technical College | 106 |
41 |
| Doowon Electronics Co., Ltd. | 85 |
40 |
| Hanon Systems | 2077 |
29 |
| Taiho Kogyo Co., Ltd. | 328 |
22 |
| Toyota Industries Corporation | 1200 |
15 |
| Valeo Japan Co., Ltd. | 312 |
10 |
| Kabushiki Kaisha Toyota Jidoshokki | 1806 |
10 |
| Sanden Holdings Corporation | 208 |
9 |
| Caterpillar Inc. | 10191 |
7 |
| Valeo Thermal Systems Japan Corporation | 21 |
7 |
| NTN Corporation | 4928 |
6 |
| Komatsu Ltd. | 4668 |
5 |
| Calsonic Kansei Corporation | 542 |
5 |
| Robert Bosch GmbH | 43788 |
4 |
| Obrist Engineering GmbH | 13 |
4 |
| LG Electronics Inc. | 75274 |
3 |
| Duke Engines Limited | 6 |
3 |
| Eagle Industry Co., Ltd. | 1171 |
3 |
| Ecothermics Corporation | 5 |
3 |
| Other owners | 143 |