- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F01C - Rotary-piston or oscillating-piston machines or engines
- F01C 19/02 - Radially-movable sealings for working fluids
Patent holdings for IPC class F01C 19/02
Total number of patents in this class: 74
10-year publication summary
|
14
|
6
|
9
|
12
|
2
|
1
|
5
|
2
|
5
|
1
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Pratt & Whitney Canada Corp. | 5506 |
9 |
| Lontra Limited | 24 |
8 |
| Mallen Research Limited Partnership | 6 |
5 |
| Nidec Motor Corporation | 528 |
5 |
| Roper Pump Company, LLC | 42 |
4 |
| Uav Engines Ltd | 10 |
3 |
| Fuelsave GmbH | 19 |
3 |
| LG Electronics Inc. | 75818 |
2 |
| GoTek Energy, Inc. | 9 |
2 |
| Lonati S.p.A. | 86 |
2 |
| Quantex ARC Limited | 13 |
2 |
| The Regents of the University of California | 20778 |
1 |
| Hitachi, Ltd. | 16113 |
1 |
| Robert Bosch GmbH | 44176 |
1 |
| 1564330 Ontario Inc. | 10 |
1 |
| AVL List GmbH | 1324 |
1 |
| Beijing Rostar Technology Co. Ltd | 17 |
1 |
| CBF s.r.l. | 6 |
1 |
| E.A. Technical Services Limited | 1 |
1 |
| FORNOVO GAS S.r.l. | 3 |
1 |
| Other owners | 20 |