- 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: 149
10-year publication summary
|
15
|
11
|
20
|
16
|
11
|
9
|
7
|
11
|
11
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Industrial Equipment Systems Co., Ltd. | 1501 |
21 |
| Edwards Limited | 790 |
12 |
| Mitsubishi Heavy Industries Compressor Corporation | 631 |
6 |
| Nabtesco Corporation | 879 |
4 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 569 |
3 |
| Bidell Equipment Limited Partnership | 3 |
3 |
| HBL Holdings, LLC | 5 |
3 |
| BHE Compression Services, LLC | 6 |
3 |
| Denso Corporation | 24933 |
2 |
| Murata Manufacturing Co., Ltd. | 25190 |
2 |
| Bf+ Energia Oy | 2 |
2 |
| Flogistix, LP, Flogistix GP, LLC, a Delaware limited liability company, sole general partner | 27 |
2 |
| Kobe Steel, Ltd. | 884 |
2 |
| Korea Basic Science Institute | 323 |
2 |
| Minebea Mitsumi Inc. | 1831 |
2 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 933 |
2 |
| Nuovo Pignone Tecnologie S.r.l. | 1093 |
2 |
| China Three Gorges Corporation | 203 |
2 |
| Kobelco Compressors Corporation | 67 |
2 |
| LG Electronics Inc. | 74135 |
1 |
| Other owners | 71 |