- All sections
- F - Mechanical engineeringlightingheatingweaponsblasting
- F28D - Heat-exchange apparatus, not provided for in another subclass, in which the heat-exchange media do not come into direct contactheat storage plants or apparatus in general
- F28D 7/00 - 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
Patent holdings for IPC class F28D 7/00
Total number of patents in this class: 1163
10-year publication summary
|
102
|
152
|
135
|
119
|
80
|
73
|
94
|
64
|
52
|
24
|
| 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
Principal owners for this class
| Owner |
All patents
|
This class
|
|---|---|---|
| Hamilton Sundstrand Corporation | 4853 |
46 |
| General Electric Company | 13811 |
33 |
| Valeo Systemes Thermiques | 2720 |
28 |
| Saudi Arabian Oil Company | 12997 |
21 |
| Mitsubishi Electric Corporation | 45962 |
16 |
| Daikin Industries, Ltd. | 9991 |
15 |
| Hanon Systems | 1923 |
14 |
| Denso Corporation | 24230 |
12 |
| Air Products and Chemicals, Inc. | 1417 |
11 |
| Linde Aktiengesellschaft | 1516 |
11 |
| MAHLE International GmbH | 2761 |
11 |
| Modine Manufacturing Company | 308 |
10 |
| Rtx Corporation | 9332 |
10 |
| Mitsubishi Heavy Industries, Ltd. | 8694 |
9 |
| Fulton Group N.A., Inc. | 50 |
9 |
| L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude | 3967 |
9 |
| Johnson Controls Tyco IP Holdings LLP | 653 |
9 |
| Shell Internationale Research Maatschappij B.V. | 3551 |
8 |
| Carrier Corporation | 4354 |
8 |
| Casale SA | 609 |
8 |
| Other owners | 865 |