- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F04C - Rotary-piston, or oscillating-piston, positive-displacement machines for liquids; rotary-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: 1215
10-year publication summary
|
87
|
108
|
137
|
151
|
102
|
108
|
105
|
91
|
117
|
42
|
| 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| LG Electronics Inc. | 69257 |
139 |
| Daikin Industries, Ltd. | 9495 |
66 |
| Mitsubishi Electric Corporation | 43934 |
51 |
| GREE Electric Appliances, Inc. of Zhuhai | 3007 |
47 |
| Copeland LP | 656 |
47 |
| Hanon Systems | 1632 |
40 |
| Panasonic Intellectual Property Management Co., Ltd. | 27812 |
33 |
| Fujitsu General Limited | 541 |
30 |
| Samsung Electronics Co., Ltd. | 131630 |
25 |
| Toshiba Carrier Corporation | 567 |
25 |
| Emerson Climate Technologies, Inc. | 308 |
24 |
| Atlas Copco Airpower, naamloze vennootschap | 915 |
23 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
21 |
| Denso Corporation | 23338 |
20 |
| Emerson Climate Technologies (Suzhou) Co., Ltd. | 172 |
19 |
| Pierburg Pump Technology GmbH | 305 |
18 |
| Trane International Inc. | 1123 |
18 |
| Danfoss Commercial Compressors | 88 |
17 |
| Guangdong Meizhi Compressor Co., Ltd. | 157 |
16 |
| Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
16 |
| Other owners | 520 |