- 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 18/02 - Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
Patent holdings for IPC class F04C 18/02
Total number of patents in this class: 2848
10-year publication summary
201
|
230
|
245
|
281
|
263
|
266
|
229
|
250
|
229
|
104
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
LG Electronics Inc. | 69257 |
276 |
Mitsubishi Electric Corporation | 43934 |
244 |
Daikin Industries, Ltd. | 9495 |
188 |
Copeland LP | 656 |
178 |
Hanon Systems | 1632 |
127 |
Mitsubishi Heavy Industries Thermal Systems, Ltd. | 786 |
113 |
Emerson Climate Technologies (Suzhou) Co., Ltd. | 172 |
101 |
Emerson Climate Technologies, Inc. | 308 |
100 |
Sanden Corporation | 859 |
82 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
81 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
77 |
Toyota Industries Corporation | 1010 |
77 |
Edwards Limited | 764 |
61 |
Danfoss Commercial Compressors | 88 |
59 |
Hitachi Industrial Equipment Systems Co., Ltd. | 1334 |
56 |
Hitachi-johnson Controls Air Conditioning, Inc. | 499 |
56 |
Bitzer Kühlmaschinenbau GmbH | 176 |
49 |
Trane International Inc. | 1123 |
46 |
Samsung Electronics Co., Ltd. | 131630 |
41 |
Bitzer Kuehlmaschinenbau GmbH | 140 |
41 |
Other owners | 795 |