- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 21/00 - Oscillating-piston pumps specially adapted for elastic fluids
Patent holdings for IPC class F04C 21/00
Total number of patents in this class: 44
10-year publication summary
|
1
|
6
|
4
|
9
|
6
|
2
|
3
|
0
|
1
|
0
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Swashpump Technologies Limited | 6 |
3 |
| Honeywell International Inc. | 13604 |
2 |
| Fujitsu Ten Limited | 464 |
2 |
| Daikin Industries, Ltd. | 9932 |
2 |
| Greystone Technologies Pty Ltd | 10 |
2 |
| Emerald Energy NW, LLC | 11 |
2 |
| RapSon GmbH | 3 |
2 |
| Denso Ten Limited | 373 |
2 |
| FeTu Limited | 17 |
2 |
| Exodus R&D International PTE, LTD. | 7 |
2 |
| MA, Lili | 11 |
2 |
| Shenzhen Spherical Fluid Power Technology Co.,Ltd. | 10 |
2 |
| Bitzer Kuehlmaschinenbau GmbH | 149 |
1 |
| Burckhardt Compression AG | 118 |
1 |
| Chang Gung Memorial Hospital, Linkou | 60 |
1 |
| Chrono Therapeutics, Inc. | 16 |
1 |
| Dr. Ing. h.c. F. Porsche Aktiengesellschaft | 2699 |
1 |
| Exponential Technologies, Inc. | 36 |
1 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1442 |
1 |
| Korea Ocean Research and Development Institute | 53 |
1 |
| Other owners | 11 |