- 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: 1873
10-year publication summary
|
176
|
177
|
183
|
133
|
148
|
119
|
128
|
116
|
127
|
89
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75818 |
188 |
| Arcelik A.S. | 3369 |
52 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 976 |
44 |
| Daikin Industries, Ltd. | 10504 |
40 |
| Hanon Systems | 2108 |
37 |
| Whirlpool S.A. | 337 |
36 |
| Copeland LP | 705 |
34 |
| Toyota Industries Corporation | 1210 |
30 |
| Sanden Corporation | 1031 |
30 |
| Mitsubishi Electric Corporation | 48048 |
28 |
| Panasonic Corporation | 18962 |
24 |
| Robert Bosch GmbH | 44176 |
22 |
| Mitsubishi Heavy Industries, Ltd. | 9139 |
21 |
| Sanden Automotive Components Corporation | 157 |
20 |
| Black & Decker, Inc. | 2445 |
18 |
| Nidec Global Appliance Brasil Ltda. | 70 |
18 |
| Anhui Meizhi Compressor Co., Ltd. | 71 |
16 |
| SPM Oil & Gas Inc. | 360 |
15 |
| Samsung Electronics Co., Ltd. | 157946 |
13 |
| Denso Corporation | 25579 |
13 |
| Other owners | 1174 |