- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/56 - Fluid-guiding means, e.g. diffusers adjustable
Patent holdings for IPC class F04D 29/56
Total number of patents in this class: 574
10-year publication summary
41
|
78
|
60
|
77
|
55
|
36
|
39
|
26
|
27
|
11
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Rtx Corporation | 8674 |
93 |
Safran Aircraft Engines | 5739 |
82 |
General Electric Company | 18133 |
32 |
MTU Aero Engines AG | 622 |
26 |
Pratt & Whitney Canada Corp. | 4215 |
20 |
Rolls-Royce North American Technologies, Inc. | 1079 |
19 |
Rolls-Royce Corporation | 1686 |
15 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
14 |
Rolls-Royce PLC | 2944 |
14 |
GE Infrastructure Technology, LLC | 5873 |
13 |
Snecma | 1065 |
13 |
SNECMA S.A. | 1160 |
10 |
Safran Aero Boosters SA | 180 |
10 |
Safran Helicopter Engines | 676 |
9 |
Siemens AG | 24990 |
8 |
JPMorgan Chase Bank, National Association | 10964 |
7 |
Dyson Technology Limited | 3124 |
7 |
MTU Aero Engines GmbH | 565 |
7 |
Mitsubishi Power, Ltd. | 1680 |
7 |
Honeywell International Inc. | 13799 |
6 |
Other owners | 162 |