- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 2/20 - 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 with toothed rotary pistons with dissimilar tooth forms
Patent holdings for IPC class F04C 2/20
Total number of patents in this class: 13
10-year publication summary
|
4
|
2
|
0
|
0
|
0
|
2
|
2
|
0
|
0
|
0
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Laverne E. Schumann, Jr. Revocable Trust | 6 |
3 |
| Audi AG | 7590 |
2 |
| G.p.s. Green Power Solution SA | 2 |
2 |
| Carrier Corporation | 3960 |
1 |
| Klaus Union GmbH & Co. KG | 25 |
1 |
| Kyungwon Machinery Co., Ltd. | 5 |
1 |
| Parker-Hannifin Corporation | 1045 |
1 |
| Roper Pump Company | 5 |
1 |
| Copeland LP | 716 |
1 |
| Other owners | 0 |