- 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 3/02 - 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 flows in a continuous film, or trickles freel with tubular conduits
Patent holdings for IPC class F28D 3/02
Total number of patents in this class: 150
10-year publication summary
16
|
16
|
23
|
7
|
8
|
13
|
14
|
8
|
9
|
4
|
2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
Principal owners for this class
Owner |
All patents
|
This class
|
---|---|---|
Carrier Corporation | 4759 |
14 |
Johnson Controls Tyco IP Holdings LLP | 1584 |
12 |
Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) | 2865 |
8 |
Daikin Applied Americas Inc. | 83 |
5 |
Trane International Inc. | 1123 |
5 |
Daikin Industries, Ltd. | 9495 |
4 |
Johnson Controls Technology Company | 1522 |
4 |
Evapco, Inc. | 244 |
4 |
Rheem Manufacturing Company | 861 |
4 |
York (Wuxi) Air Conditioning and Refrigeration Co. , Ltd. | 43 |
4 |
Wga Water Global Access, S.L. | 20 |
4 |
Coflo Technologies LLC | 4 |
4 |
Joulia AG | 10 |
3 |
MAHLE International GmbH | 2670 |
3 |
Saipem S.p.A. | 513 |
3 |
Sumitomo Precision Products Co., Ltd. | 273 |
3 |
Mitsubishi Heavy Industries, Ltd. | 8217 |
2 |
Panasonic Intellectual Property Management Co., Ltd. | 27812 |
2 |
Aker Subsea AS | 130 |
2 |
Frigel Firenze S.p.A. | 10 |
2 |
Other owners | 58 |