- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25B - Refrigeration machines, plants or systemscombined heating and refrigeration systemsheat pump systems
- F25B 9/06 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using expanders
Patent holdings for IPC class F25B 9/06
Total number of patents in this class: 333
10-year publication summary
|
30
|
17
|
22
|
15
|
34
|
37
|
32
|
29
|
27
|
30
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 5011 |
44 |
| Sumitomo Heavy Industries, Ltd. | 2130 |
25 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4137 |
22 |
| Mitsubishi Heavy Industries, Ltd. | 9204 |
15 |
| Sumitomo (SHI) Cryogenics of America, Inc. | 80 |
13 |
| Rolls-Royce Corporation | 1681 |
8 |
| Justairtech GmbH | 19 |
8 |
| Mayekawa Mfg. Co., Ltd. | 371 |
7 |
| Malta Inc. | 105 |
7 |
| Thevu LLC | 7 |
7 |
| Rolls-Royce North American Technologies, Inc. | 1132 |
6 |
| Mitsubishi Electric Corporation | 48351 |
5 |
| Heatcraft Refrigeration Products LLC | 282 |
4 |
| Siemens AG | 23956 |
3 |
| LG Electronics Inc. | 76087 |
3 |
| The Boeing Company | 20193 |
3 |
| Airbus Operations GmbH | 3463 |
3 |
| Carrier Corporation | 3954 |
3 |
| Linde Aktiengesellschaft | 1411 |
3 |
| Taiyo Nippon Sanso Corporation | 350 |
3 |
| Other owners | 141 |