- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 41/00 - Pumping installations or systems specially adapted for elastic fluids
Patent holdings for IPC class F04B 41/00
Total number of patents in this class: 147
10-year publication summary
|
10
|
15
|
11
|
20
|
16
|
11
|
9
|
7
|
11
|
7
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Industrial Equipment Systems Co., Ltd. | 1464 |
19 |
| Edwards Limited | 793 |
12 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
6 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 572 |
4 |
| Nabtesco Corporation | 886 |
4 |
| Bidell Equipment Limited Partnership | 3 |
3 |
| HBL Holdings, LLC | 5 |
3 |
| BHE Compression Services, LLC | 6 |
3 |
| Denso Corporation | 24480 |
2 |
| Murata Manufacturing Co., Ltd. | 24741 |
2 |
| Bf+ Energia Oy | 2 |
2 |
| Flogistix, LP, Flogistix GP, LLC, a Delaware limited liability company, sole general partner | 28 |
2 |
| Kobe Steel, Ltd. | 881 |
2 |
| Korea Basic Science Institute | 322 |
2 |
| Minebea Mitsumi Inc. | 1763 |
2 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 893 |
2 |
| Nuovo Pignone Tecnologie S.r.l. | 998 |
2 |
| China Three Gorges Corporation | 183 |
2 |
| LG Electronics Inc. | 73578 |
1 |
| Industrial Technology Research Institute | 5076 |
1 |
| Other owners | 71 |