- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/70 - Suction gridsStrainersDust separationCleaning
Patent holdings for IPC class F04D 29/70
Total number of patents in this class: 1490
10-year publication summary
|
144
|
141
|
154
|
114
|
147
|
129
|
121
|
105
|
116
|
87
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 76328 |
52 |
| Dyson Technology Limited | 4053 |
28 |
| Mitsubishi Heavy Industries Compressor Corporation | 650 |
26 |
| ebm-papst Mulfingen GmbH & Co. KG | 493 |
23 |
| Nuovo Pignone Tecnologie S.r.l. | 1127 |
19 |
| Edwards Japan Limited | 443 |
18 |
| General Electric Company | 14021 |
17 |
| Denso Corporation | 25909 |
17 |
| IHI Corporation | 3554 |
16 |
| Milwaukee Electric Tool Corporation | 5090 |
16 |
| Halliburton Energy Services, Inc. | 21300 |
13 |
| Mitsubishi Heavy Industries, Ltd. | 9271 |
13 |
| Samsung Electronics Co., Ltd. | 159755 |
12 |
| Robert Bosch GmbH | 44427 |
12 |
| Ebara Corporation | 2385 |
12 |
| Schlumberger Technology Corporation | 12005 |
10 |
| Delta Electronics, Inc. | 2875 |
10 |
| Nidec Corporation | 2831 |
10 |
| GE Infrastructure Technology, LLC | 6147 |
10 |
| Xylem Europe GmbH | 227 |
10 |
| Other owners | 1146 |