- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F25B - Refrigeration machines, plants or systemscombined heating and refrigeration systemsheat pump systems
- F25B 9/12 - Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point using 3He-4He dilution
Patent holdings for IPC class F25B 9/12
Total number of patents in this class: 128
10-year publication summary
|
3
|
2
|
4
|
5
|
13
|
11
|
25
|
19
|
10
|
17
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Bluefors Oy | 52 |
18 |
| Maybell Quantum Industries, Inc. | 27 |
16 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 4118 |
13 |
| International Business Machines Corporation | 62671 |
10 |
| Anyon Systems Inc., DBA Anyon Systems Inc. | 51 |
8 |
| Oxford Nanoscience Limited | 36 |
8 |
| Oxford Instruments NanoTechnology Tools Limited | 143 |
5 |
| IBM Deutschland GmbH | 898 |
5 |
| Google LLC | 44540 |
4 |
| Sumitomo Heavy Industries, Ltd. | 2112 |
3 |
| Zero Point Cryogenics Incorporated | 3 |
3 |
| The Regents of the University of California | 20778 |
2 |
| D-Wave Systems Inc. | 397 |
2 |
| Goodrich Corporation | 2181 |
2 |
| Montana Instruments Corporation | 41 |
2 |
| Toshiba Materials Co., Ltd. | 563 |
2 |
| Kabushiki Kaisha Toshiba, doing business as Toshiba Corporation | 6177 |
2 |
| LG Electronics Inc. | 75818 |
1 |
| The Boeing Company | 20163 |
1 |
| Centre National de La Recherche Scientifique | 11026 |
1 |
| Other owners | 20 |