- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04B - Positive-displacement machines for liquids; pumps
- F04B 39/02 - Lubrication
Patent holdings for IPC class F04B 39/02
Total number of patents in this class: 741
10-year publication summary
57
|
59
|
65
|
70
|
61
|
73
|
54
|
34
|
31
|
15
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Electronics Inc. | 69257 |
77 |
Arcelik A.S. | 3617 |
40 |
Daikin Industries, Ltd. | 9495 |
34 |
Mitsubishi Electric Corporation | 43934 |
28 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
26 |
Panasonic Appliances Refrigeration Devices Singapore | 89 |
26 |
Panasonic Corporation | 20786 |
24 |
Embraco - Indústria de Compressores e Soluções EM Refrigeração Ltda. | 138 |
15 |
Copeland LP | 656 |
15 |
Whirlpool S.A. | 377 |
14 |
Matsushita Electric Industrial Co., Ltd. | 4724 |
12 |
Hanon Systems | 1632 |
12 |
Carrier Corporation | 4759 |
11 |
Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
11 |
Samsung Electronics Co., Ltd. | 131630 |
10 |
Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
10 |
Sanden Corporation | 859 |
9 |
Ingersoll-Rand Industrial U.S., Inc. | 498 |
9 |
Graco Minnesota Inc. | 1124 |
8 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
8 |
Other owners | 342 |