- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04D - Non-positive-displacement pumps
- F04D 29/46 - Fluid-guiding means, e.g. diffusers adjustable
Patent holdings for IPC class F04D 29/46
Total number of patents in this class: 520
10-year publication summary
42
|
51
|
48
|
47
|
67
|
51
|
42
|
44
|
33
|
12
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
IHI Corporation | 3268 |
34 |
JPMorgan Chase Bank, National Association | 10964 |
23 |
Hamilton Sundstrand Corporation | 4525 |
15 |
Carrier Corporation | 4759 |
15 |
BorgWarner Inc. | 2604 |
15 |
LG Electronics Inc. | 69257 |
12 |
GREE Electric Appliances, Inc. of Zhuhai | 3007 |
12 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
11 |
Nuovo Pignone Tecnologie S.r.l. | 789 |
11 |
Siemens AG | 24990 |
10 |
Mitsubishi Heavy Industries Engine & Turbocharger, Ltd. | 699 |
10 |
Johnson Controls Technology Company | 1522 |
9 |
Mitsubishi Heavy Industries Compressor Corporation | 613 |
9 |
IHI Charging Systems International GmbH | 130 |
8 |
Pierburg Pump Technology GmbH | 305 |
8 |
Weir Minerals Australia, Ltd. | 309 |
8 |
TOYOTA JIDOSHA KABUSHIKI KAISHA (also trading as TOYOTA MOTOR CORPORATION) | 13301 |
8 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
8 |
Daikin Industries, Ltd. | 9495 |
7 |
Rolls-Royce Corporation | 1686 |
7 |
Other owners | 280 |