- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 39/02 - Lubrication
Patent holdings for IPC class F04B 39/02
Total number of patents in this class: 792
10-year publication summary
|
65
|
70
|
61
|
73
|
55
|
39
|
36
|
34
|
43
|
27
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75910 |
84 |
| Panasonic Corporation | 18809 |
40 |
| Daikin Industries, Ltd. | 10513 |
37 |
| Mitsubishi Electric Corporation | 48236 |
33 |
| Arcelik A.S. | 3366 |
33 |
| Panasonic Intellectual Property Management Co., Ltd. | 34335 |
26 |
| Samsung Electronics Co., Ltd. | 158605 |
17 |
| Robert Bosch GmbH | 44252 |
16 |
| Copeland LP | 707 |
16 |
| Whirlpool S.A. | 332 |
14 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 976 |
12 |
| Nidec Global Appliance Brasil Ltda. | 69 |
12 |
| Carrier Corporation | 3950 |
11 |
| Atlas Copco Airpower, naamloze vennootschap | 1081 |
10 |
| Hanon Systems | 2129 |
10 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1553 |
10 |
| Hitachi-johnson Controls Air Conditioning, Inc. | 510 |
10 |
| Ingersoll-Rand Industrial U.S., Inc. | 541 |
10 |
| Secop GmbH (formerly known AS Danfoss Household Compressors GmbH) | 79 |
9 |
| Anhui Meizhi Compressor Co., Ltd. | 71 |
9 |
| Other owners | 373 |