- 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 3/04 - Rotary-piston machines or pumps, with non-parallel axes of movement of co-operating members, e.g. of screw type the axes being arranged at an angle of 90 degrees of intermeshing engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
Patent holdings for IPC class F04C 3/04
Total number of patents in this class: 8
10-year publication summary
1
|
0
|
2
|
0
|
0
|
1
|
2
|
1
|
1
|
0
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Graco Minnesota Inc. | 1124 |
3 |
Lontra Limited | 27 |
2 |
Rotomotor Limited | 1 |
1 |
Shandong Pure Ocean Technology Co., Ltd | 3 |
1 |
Copeland Industrial LP | 34 |
1 |
Other owners | 0 |