- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- 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: 1307
10-year publication summary
|
146
|
195
|
176
|
127
|
111
|
68
|
87
|
72
|
66
|
6
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9077 |
96 |
| Safran Aircraft Engines | 6024 |
75 |
| General Electric Company | 17803 |
43 |
| ECP Entwicklungsgesellschaft mbH | 231 |
31 |
| Molten Metal Equipment Innovations, LLC | 97 |
26 |
| Robert Bosch GmbH | 41717 |
22 |
| Edwards Limited | 799 |
20 |
| Nuovo Pignone Tecnologie S.r.l. | 852 |
20 |
| IHI Corporation | 3356 |
18 |
| KSB SE & Co. KGaA | 670 |
15 |
| Siemens AG | 24572 |
14 |
| BorgWarner Inc. | 2588 |
14 |
| Pratt & Whitney Canada Corp. | 4434 |
13 |
| Hitachi Metals, Ltd. | 2026 |
12 |
| Hamilton Sundstrand Corporation | 4719 |
12 |
| KSB Aktiengesellschaft | 165 |
12 |
| Mitsubishi Heavy Industries Compressor Corporation | 620 |
12 |
| Snecma | 1065 |
12 |
| ebm-papst Mulfingen GmbH & Co. KG | 609 |
11 |
| Safran Aero Boosters SA | 180 |
11 |
| Other owners | 818 |