- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01C - Rotary-piston or oscillating-piston machines or engines
- F01C 19/00 - Sealing arrangements in rotary-piston machines or engines
Patent holdings for IPC class F01C 19/00
Total number of patents in this class: 206
10-year publication summary
|
21
|
20
|
11
|
13
|
10
|
10
|
16
|
13
|
9
|
6
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Edwards Limited | 773 |
26 |
| Pratt & Whitney Canada Corp. | 5472 |
24 |
| Schwabische Huttenwerke Automotive GmbH | 62 |
7 |
| LG Electronics Inc. | 75654 |
6 |
| LiquidPiston, Inc. | 51 |
6 |
| Exponential Technologies, Inc. | 33 |
4 |
| Copeland LP | 700 |
4 |
| Coool.energy Ltd | 6 |
4 |
| Hamilton Sundstrand Corporation | 5016 |
3 |
| Toyota Industries Corporation | 1209 |
3 |
| Pfeiffer Vacuum | 184 |
3 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 974 |
3 |
| Hanon Systems EFP Deutschland GmbH | 97 |
3 |
| Kobelco Compressors Corporation | 70 |
3 |
| Roper Pump Company, LLC | 42 |
3 |
| Atlas Copco Tools AB | 47 |
2 |
| Bitzer Kuehlmaschinenbau GmbH | 156 |
2 |
| Busch Produktions GmbH | 18 |
2 |
| Dover Pump Solutions Group (Europe) GmbH | 2 |
2 |
| Genesis Advanced Technology Inc. | 50 |
2 |
| Other owners | 94 |