- 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: 1397
10-year publication summary
|
116
|
141
|
135
|
149
|
109
|
137
|
122
|
112
|
101
|
90
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73714 |
51 |
| Dyson Technology Limited | 3698 |
28 |
| Mitsubishi Heavy Industries Compressor Corporation | 633 |
26 |
| ebm-papst Mulfingen GmbH & Co. KG | 613 |
23 |
| Nuovo Pignone Tecnologie S.r.l. | 1006 |
20 |
| General Electric Company | 13856 |
18 |
| Edwards Japan Limited | 429 |
17 |
| Denso Corporation | 24588 |
16 |
| IHI Corporation | 3453 |
16 |
| Milwaukee Electric Tool Corporation | 4495 |
12 |
| Samsung Electronics Co., Ltd. | 148077 |
11 |
| Halliburton Energy Services, Inc. | 20991 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 8823 |
11 |
| Robert Bosch GmbH | 42861 |
11 |
| Xylem Europe GmbH | 215 |
11 |
| Delta Electronics, Inc. | 2653 |
10 |
| Ebara Corporation | 2201 |
10 |
| Nidec Corporation | 2685 |
10 |
| GE Infrastructure Technology, LLC | 6201 |
10 |
| Siemens AG | 24346 |
9 |
| Other owners | 1066 |