- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04B - Positive-displacement machines for liquidspumps
- F04B 39/12 - CasingsCylindersCylinder headsFluid connections
Patent holdings for IPC class F04B 39/12
Total number of patents in this class: 1770
10-year publication summary
|
173
|
175
|
176
|
181
|
131
|
148
|
116
|
121
|
114
|
108
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 73772 |
172 |
| Arcelik A.S. | 3463 |
54 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 918 |
44 |
| Daikin Industries, Ltd. | 10166 |
43 |
| Whirlpool S.A. | 351 |
39 |
| Hanon Systems | 2008 |
34 |
| Copeland LP | 693 |
31 |
| Toyota Industries Corporation | 1153 |
30 |
| Mitsubishi Electric Corporation | 46926 |
28 |
| Sanden Corporation | 976 |
27 |
| Panasonic Corporation | 19966 |
25 |
| Mitsubishi Heavy Industries, Ltd. | 8875 |
21 |
| Robert Bosch GmbH | 43063 |
21 |
| Sanden Automotive Components Corporation | 158 |
20 |
| Black & Decker, Inc. | 2404 |
18 |
| Nidec Global Appliance Brasil Ltda. | 67 |
18 |
| Anhui Meizhi Compressor Co., Ltd. | 70 |
16 |
| SPM Oil & Gas Inc. | 337 |
15 |
| Denso Corporation | 24783 |
13 |
| Panasonic Intellectual Property Management Co., Ltd. | 32457 |
13 |
| Other owners | 1088 |