- 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 29/06 - Silencing
Patent holdings for IPC class F04C 29/06
Total number of patents in this class: 538
10-year publication summary
|
43
|
43
|
57
|
40
|
44
|
49
|
46
|
46
|
43
|
2
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Daikin Industries, Ltd. | 9810 |
51 |
| LG Electronics Inc. | 70898 |
46 |
| Hanon Systems | 1814 |
24 |
| Mitsubishi Electric Corporation | 44738 |
20 |
| GREE Electric Appliances, Inc. of Zhuhai | 3149 |
18 |
| Toyota Industries Corporation | 1054 |
14 |
| Trane International Inc. | 1149 |
12 |
| Copeland LP | 674 |
12 |
| Samsung Electronics Co., Ltd. | 138518 |
11 |
| Toshiba Carrier Corporation | 518 |
11 |
| Panasonic Intellectual Property Management Co., Ltd. | 29620 |
10 |
| Pierburg Pump Technology GmbH | 313 |
10 |
| Mitsubishi Heavy Industries Thermal Systems, Ltd. | 835 |
10 |
| Carrier Corporation | 4444 |
9 |
| Emerson Climate Technologies (Suzhou) Co., Ltd. | 171 |
9 |
| Guangdong Meizhi Compressor Co., Ltd. | 174 |
9 |
| Johnson Controls Air Conditioning and Refrigeration (Wuxi) Co., Ltd. | 37 |
8 |
| Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2905 |
8 |
| Hella GmbH & Co. KGaA | 1519 |
8 |
| Ingersoll-Rand Industrial U.S., Inc. | 497 |
8 |
| Other owners | 230 |