- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/02 - Selection of particular materials
Patent holdings for IPC class F04D 29/02
Total number of patents in this class: 1348
10-year publication summary
|
141
|
188
|
172
|
123
|
108
|
66
|
84
|
74
|
68
|
39
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9410 |
97 |
| Safran Aircraft Engines | 6294 |
77 |
| General Electric Company | 13810 |
43 |
| ECP Entwicklungsgesellschaft mbH | 230 |
31 |
| Molten Metal Equipment Innovations, LLC | 99 |
26 |
| Robert Bosch GmbH | 42705 |
24 |
| Nuovo Pignone Tecnologie S.r.l. | 981 |
21 |
| Edwards Limited | 790 |
20 |
| KSB SE & Co. KGaA | 699 |
19 |
| IHI Corporation | 3450 |
18 |
| BorgWarner Inc. | 2599 |
15 |
| Siemens AG | 24453 |
14 |
| Pratt & Whitney Canada Corp. | 4793 |
13 |
| Hamilton Sundstrand Corporation | 4891 |
13 |
| Hitachi Metals, Ltd. | 1977 |
12 |
| KSB Aktiengesellschaft | 162 |
12 |
| Mitsubishi Heavy Industries Compressor Corporation | 631 |
12 |
| Snecma | 1064 |
12 |
| ebm-papst Mulfingen GmbH & Co. KG | 616 |
11 |
| Edwards Japan Limited | 423 |
11 |
| Other owners | 847 |