- All sections
- F - Mechanical engineering; lighting; heating; weapons; blasting
- F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contact; heat storage plants or apparatus in general
- F28D 1/047 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or mo with the heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being bent, e.g. in a serpentine or zig-zag
Patent holdings for IPC class F28D 1/047
Total number of patents in this class: 890
10-year publication summary
77
|
105
|
121
|
116
|
105
|
90
|
65
|
63
|
58
|
14
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Mitsubishi Electric Corporation | 43934 |
83 |
Daikin Industries, Ltd. | 9495 |
58 |
LG Electronics Inc. | 69257 |
29 |
Carrier Corporation | 4759 |
22 |
Hamilton Sundstrand Corporation | 4525 |
18 |
BSH Bosch und Siemens Hausgerate GmbH | 3236 |
18 |
Samsung Electronics Co., Ltd. | 131630 |
14 |
Trane International Inc. | 1123 |
13 |
Arcelik A.S. | 3617 |
12 |
Koninklijke Philips N.V. | 22975 |
11 |
Rtx Corporation | 8674 |
11 |
General Electric Company | 18133 |
10 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
10 |
BSH Hausgeräte GmbH | 5384 |
10 |
Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd. | 110 |
10 |
Baltimore Aircoil Company, Inc. | 156 |
9 |
Evapco, Inc. | 244 |
9 |
Noritz Corporation | 255 |
9 |
Zhejiang DunAn Artificial Environment Co., Ltd | 394 |
9 |
Danfoss Micro Channel Heat Exchanger (Jiaxing) Co. Ltd. | 89 |
8 |
Other owners | 517 |