- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 39/06 - CoolingHeatingPrevention of freezing
Patent holdings for IPC class F04B 39/06
Total number of patents in this class: 884
10-year publication summary
|
72
|
63
|
73
|
59
|
57
|
61
|
73
|
62
|
61
|
37
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hitachi Industrial Equipment Systems Co., Ltd. | 1553 |
48 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
42 |
| Copeland LP | 707 |
30 |
| Mitsubishi Electric Corporation | 48236 |
18 |
| Denso Corporation | 25676 |
15 |
| Knorr-Bremse Systeme fur Schienenfahrzeuge GmbH | 571 |
15 |
| Robert Bosch GmbH | 44252 |
14 |
| Daikin Industries, Ltd. | 10513 |
14 |
| Arcelik A.S. | 3366 |
14 |
| Sanden Corporation | 1050 |
14 |
| Hanon Systems | 2129 |
13 |
| Westinghouse Air Brake Technologies Corporation | 487 |
12 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
11 |
| Mitsubishi Heavy Industries, Ltd. | 9172 |
10 |
| LG Electronics Inc. | 75910 |
9 |
| Gardner Denver Deutschland GmbH | 60 |
9 |
| Knorr-Bremse Systeme für Nutzfahrzeuge GmbH | 1340 |
9 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 976 |
9 |
| Haier Smart Home Co., Ltd. | 5732 |
9 |
| Black & Decker, Inc. | 2463 |
8 |
| Other owners | 561 |