- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquidsrotary-piston, or oscillating-piston, positive-displacement pumps
- F04C 29/12 - Arrangements for admission or discharge of the working fluid, e.g. constructional features of the inlet or outlet
Patent holdings for IPC class F04C 29/12
Total number of patents in this class: 1443
10-year publication summary
|
137
|
151
|
102
|
108
|
105
|
95
|
127
|
118
|
112
|
39
|
| 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 | 2026 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 75112 |
165 |
| Daikin Industries, Ltd. | 10401 |
76 |
| Mitsubishi Electric Corporation | 47655 |
71 |
| Copeland LP | 695 |
57 |
| GREE Electric Appliances, Inc. of Zhuhai | 3284 |
54 |
| Hanon Systems | 2071 |
53 |
| Panasonic Intellectual Property Management Co., Ltd. | 33634 |
38 |
| Fujitsu General Limited | 601 |
35 |
| Samsung Electronics Co., Ltd. | 154406 |
31 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 967 |
25 |
| Atlas Copco Airpower, naamloze vennootschap | 1063 |
24 |
| Emerson Climate Technologies, Inc. | 294 |
24 |
| Toshiba Carrier Corporation | 478 |
24 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1521 |
21 |
| Denso Corporation | 25261 |
20 |
| Guangdong Meizhi Compressor Co., Ltd. | 202 |
20 |
| Bitzer Kuehlmaschinenbau GmbH | 156 |
18 |
| Emerson Climate Technologies (Suzhou) Co., Ltd. | 169 |
18 |
| Pierburg Pump Technology GmbH | 333 |
18 |
| Trane International Inc. | 1217 |
18 |
| Other owners | 633 |