- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 14/22 - Control of, monitoring of, or safety arrangements for, machines, pumps or pumping installations characterised by varying the volume of the working chamber by changing the eccentricity between cooperating members
Patent holdings for IPC class F04C 14/22
Total number of patents in this class: 336
10-year publication summary
48
|
32
|
37
|
29
|
35
|
12
|
18
|
11
|
10
|
3
|
2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Pierburg Pump Technology GmbH | 326 |
52 |
Hitachi Astemo, Ltd. | 6380 |
42 |
Hitachi Automotive Systems, Ltd. | 3955 |
20 |
KYB Corporation | 1384 |
12 |
Hanon Systems EFP Canada Ltd. | 66 |
11 |
Aisin Seiki Kabushiki Kaisha | 2221 |
10 |
Schwabische Huttenwerke Automotive GmbH | 63 |
10 |
Vhit S.p.A. | 61 |
10 |
Magna Powertrain Inc. | 111 |
8 |
MAHLE International GmbH | 2810 |
8 |
Robert Bosch GmbH | 42861 |
7 |
Johnson Electric Motion Technology Canada Ltd. | 14 |
7 |
Ford Global Technologies, LLC | 20769 |
6 |
ECP Entwicklungsgesellschaft mbH | 233 |
6 |
Stackpole International Engineered Products, Ltd. | 28 |
6 |
GM Global Technology Operations LLC | 15220 |
4 |
Kayaba Industry Co., Ltd. | 352 |
4 |
O.M.P. Officine Mazzocco Pagnoni, S.r.L. | 23 |
4 |
Hanon Systems EFP Deutschland GmbH | 91 |
4 |
Pump Technology Solutions PS GmbH | 15 |
4 |
Other owners | 101 |