- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/70 - Suction grids; Strainers; Dust separation; Cleaning
Patent holdings for IPC class F04D 29/70
Total number of patents in this class: 1231
10-year publication summary
|
89
|
127
|
146
|
141
|
154
|
114
|
140
|
124
|
113
|
29
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
43 |
| Mitsubishi Heavy Industries Compressor Corporation | 613 |
26 |
| Dyson Technology Limited | 3124 |
25 |
| ebm-papst Mulfingen GmbH & Co. KG | 608 |
23 |
| Nuovo Pignone Tecnologie S.r.l. | 789 |
18 |
| General Electric Company | 18133 |
16 |
| Denso Corporation | 23338 |
16 |
| IHI Corporation | 3268 |
16 |
| Edwards Japan Limited | 376 |
14 |
| Xylem Europe GmbH | 204 |
12 |
| Halliburton Energy Services, Inc. | 20165 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
10 |
| Robert Bosch GmbH | 40953 |
10 |
| Nidec Corporation | 2579 |
10 |
| GE Infrastructure Technology, LLC | 5873 |
10 |
| Siemens AG | 24990 |
9 |
| Mitsubishi Electric Corporation | 43934 |
9 |
| Ebara Corporation | 1951 |
9 |
| Hayward Industries, Inc. | 669 |
9 |
| Rtx Corporation | 8674 |
9 |
| Other owners | 926 |