- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F25B - Refrigeration machines, plants or systems; combined heating and refrigeration systems; heat 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: 271
10-year publication summary
|
18
|
24
|
30
|
17
|
22
|
15
|
34
|
34
|
31
|
11
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4525 |
26 |
| Sumitomo Heavy Industries, Ltd. | 1670 |
23 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3515 |
16 |
| Sumitomo (SHI) Cryogenics of America, Inc. | 80 |
11 |
| Rolls-Royce Corporation | 1686 |
8 |
| Mayekawa Mfg. Co., Ltd. | 327 |
7 |
| Malta Inc. | 107 |
7 |
| Rolls-Royce North American Technologies, Inc. | 1079 |
6 |
| Mitsubishi Electric Corporation | 43934 |
5 |
| Justairtech GmbH | 15 |
5 |
| NTN Corporation | 5008 |
4 |
| Carrier Corporation | 4759 |
4 |
| Siemens AG | 24990 |
3 |
| LG Electronics Inc. | 69257 |
3 |
| Mitsubishi Heavy Industries, Ltd. | 8217 |
3 |
| Airbus Operations GmbH | 3188 |
3 |
| Linde Aktiengesellschaft | 1600 |
3 |
| Taiyo Nippon Sanso Corporation | 356 |
3 |
| Rtx Corporation | 8674 |
3 |
| The Boeing Company | 19843 |
2 |
| Other owners | 126 |