- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 2/12 - Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of other than internal-axis type
Patent holdings for IPC class F04C 2/12
Total number of patents in this class: 146
10-year publication summary
|
16
|
9
|
13
|
15
|
12
|
15
|
10
|
6
|
10
|
5
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hugo Vogelsang Maschinenbau GmbH | 64 |
10 |
| Hamilton Sundstrand Corporation | 4891 |
8 |
| NETZSCH Pumpen & Systeme GmbH | 97 |
8 |
| Alfa Laval Corporate AB | 1315 |
7 |
| Robert Bosch GmbH | 42705 |
5 |
| Vogelsang GmbH & Co. KG | 59 |
5 |
| Toyota Industries Corporation | 1119 |
4 |
| Bricks Group, LLC | 21 |
4 |
| Bosch Pouch Systems AG | 20 |
3 |
| Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wurzburg | 233 |
3 |
| Ampco Pumps Company | 3 |
2 |
| Busch Produktions GmbH | 13 |
2 |
| CASAPPA S.p.A. | 26 |
2 |
| Chilldyne, Inc. | 14 |
2 |
| Danfoss Power Solutions GmbH & Co. OHG | 73 |
2 |
| Edwards Limited | 790 |
2 |
| Energreen AS | 10 |
2 |
| GKN Sinter Metals Engineering GmbH | 114 |
2 |
| G.p.s. Green Power Solution SA | 2 |
2 |
| Jiangnan University | 1531 |
2 |
| Other owners | 69 |