- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04D - Non-positive-displacement pumps
- F04D 29/16 - Sealings between pressure and suction sides
Patent holdings for IPC class F04D 29/16
Total number of patents in this class: 638
10-year publication summary
|
76
|
85
|
85
|
54
|
44
|
25
|
19
|
23
|
22
|
14
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Rtx Corporation | 9420 |
53 |
| Denso Corporation | 24387 |
21 |
| Robert Bosch GmbH | 42742 |
17 |
| Rolls-Royce Corporation | 1756 |
17 |
| Safran Aircraft Engines | 6302 |
14 |
| Carrier Corporation | 4289 |
13 |
| Rolls-Royce North American Technologies, Inc. | 1169 |
12 |
| Nuovo Pignone Tecnologie S.r.l. | 991 |
12 |
| KSB SE & Co. KGaA | 698 |
12 |
| General Electric Company | 13807 |
11 |
| Mitsubishi Heavy Industries Compressor Corporation | 634 |
10 |
| Daikin Industries, Ltd. | 10047 |
9 |
| Dyson Technology Limited | 3663 |
9 |
| Safran Aero Boosters SA | 183 |
9 |
| EBM-Papst St. Georgen GmbH & Co. KG | 231 |
8 |
| Mitsubishi Heavy Industries, Ltd. | 8777 |
7 |
| MTU Aero Engines GmbH | 501 |
7 |
| Grundfos Holding A/S | 559 |
7 |
| Siemens AG | 24436 |
6 |
| Pratt & Whitney Canada Corp. | 4804 |
6 |
| Other owners | 378 |