- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 25/04 - Multi-stage pumps specially adapted for elastic fluids having cylinders coaxial with, or parallel or inclined to, main shaft axis
Patent holdings for IPC class F04B 25/04
Total number of patents in this class: 88
10-year publication summary
|
5
|
2
|
11
|
8
|
1
|
4
|
1
|
2
|
2
|
1
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Doowon Technical College | 104 |
20 |
| Doowon Electronics Co., Ltd. | 86 |
20 |
| Hanon Systems | 1929 |
5 |
| LG Electronics Inc. | 72890 |
2 |
| Bitzer Kuehlmaschinenbau GmbH | 152 |
2 |
| Gasfill Limited | 2 |
2 |
| Kobe Steel, Ltd. | 871 |
2 |
| CW Holdings Ltd. | 7 |
2 |
| Caterpillar Inc. | 9539 |
1 |
| Hyundai Motor Company | 21938 |
1 |
| Thermo Finnigan LLC | 637 |
1 |
| Carrier Corporation | 4349 |
1 |
| Kia Motors Corporation | 7757 |
1 |
| Beijing Const Instrument Technology Inc. | 13 |
1 |
| Beijing Const Instruments Technology Inc. | 16 |
1 |
| Board of Regents of the University of Nebraska | 755 |
1 |
| Crosman Corporation | 192 |
1 |
| Erae Automotive Systems Co., Ltd. | 15 |
1 |
| Go Natural Cng, LLC | 1 |
1 |
| INFICON GmbH | 214 |
1 |
| Other owners | 21 |