- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-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: 341
10-year publication summary
47
|
49
|
32
|
37
|
29
|
36
|
12
|
19
|
10
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Pierburg Pump Technology GmbH | 305 |
52 |
Hitachi Astemo, Ltd. | 5618 |
39 |
Hitachi Automotive Systems, Ltd. | 3970 |
20 |
Stackpole International Engineered Products, Ltd. | 46 |
13 |
KYB Corporation | 1278 |
12 |
Hanon Systems EFP Canada Ltd. | 65 |
11 |
Aisin Seiki Kabushiki Kaisha | 2427 |
10 |
Schwabische Huttenwerke Automotive GmbH | 68 |
10 |
Vhit S.p.A. | 64 |
10 |
Robert Bosch GmbH | 40953 |
8 |
Magna Powertrain Inc. | 120 |
8 |
MAHLE International GmbH | 2670 |
8 |
Ford Global Technologies, LLC | 19702 |
6 |
ZF Lenksysteme GmbH | 141 |
6 |
ECP Entwicklungsgesellschaft mbH | 215 |
5 |
GM Global Technology Operations LLC | 13620 |
4 |
ixetic Bad Homburg GmbH | 50 |
4 |
Kayaba Industry Co., Ltd. | 376 |
4 |
O.M.P. Officine Mazzocco Pagnoni, S.r.L. | 18 |
4 |
Hanon Systems EFP Deutschland GmbH | 79 |
4 |
Other owners | 103 |