- 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 7/10 - Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being arranged one within the other, e.g. concentrically
Patent holdings for IPC class F28D 7/10
Total number of patents in this class: 940
10-year publication summary
89
|
88
|
87
|
87
|
96
|
53
|
78
|
65
|
47
|
16
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
NGK Insulators, Ltd. | 4589 |
28 |
Denso Corporation | 23338 |
14 |
Hamilton Sundstrand Corporation | 4525 |
13 |
Dana Canada Corporation | 284 |
12 |
Hanon Systems | 1632 |
12 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
11 |
Fulton Group N.A., Inc. | 48 |
11 |
Calsonic Kansei Corporation | 686 |
10 |
Mitsubishi Electric Corporation | 43934 |
9 |
Hyundai Motor Company | 19021 |
9 |
Holtec International, Inc. | 258 |
9 |
Daikin Industries, Ltd. | 9495 |
8 |
MAHLE International GmbH | 2670 |
8 |
General Electric Company | 18133 |
7 |
Carrier Corporation | 4759 |
7 |
BORSIG GmbH | 17 |
7 |
Denso Air Systems Corporation | 14 |
7 |
Linde Aktiengesellschaft | 1600 |
7 |
Louisiana Eco Green, L.L.C. | 12 |
7 |
Modine Manufacturing Company | 305 |
7 |
Other owners | 737 |