- 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 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: 143
10-year publication summary
28
|
16
|
10
|
14
|
15
|
12
|
16
|
11
|
7
|
3
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Hugo Vogelsang Maschinenbau GmbH | 65 |
11 |
Hamilton Sundstrand Corporation | 4525 |
8 |
NETZSCH Pumpen & Systeme GmbH | 93 |
8 |
Alfa Laval Corporate AB | 1265 |
7 |
Robert Bosch GmbH | 40953 |
5 |
Vogelsang GmbH & Co. KG | 54 |
5 |
Bricks Group, LLC | 22 |
4 |
Toyota Industries Corporation | 1010 |
3 |
Bosch Pouch Systems AG | 20 |
3 |
Brose Fahrzeugteile GmbH & Co. Kommanditgesellschaft, Wurzburg | 238 |
3 |
G.p.s. Green Power Solution SA | 3 |
3 |
Ampco Pumps Company | 3 |
2 |
Busch Produktions GmbH | 10 |
2 |
CASAPPA S.p.A. | 25 |
2 |
Chilldyne, Inc. | 12 |
2 |
Danfoss Power Solutions GmbH & Co. OHG | 70 |
2 |
Edwards Limited | 764 |
2 |
Energreen AS | 10 |
2 |
GKN Sinter Metals Engineering GmbH | 128 |
2 |
Jiangnan University | 1410 |
2 |
Other owners | 65 |